You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1594 lines
128 KiB
HTML
1594 lines
128 KiB
HTML
<!-- HTML header for doxygen 1.9.2-->
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1"/>
|
|
<title>CMSIS-DSP: Complex FFT Tables</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="jquery.js"></script>
|
|
<script type="text/javascript" src="dynsections.js"></script>
|
|
<script type="text/javascript" src="footer.js"></script>
|
|
<link href="navtree.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="resize.js"></script>
|
|
<script type="text/javascript" src="navtreedata.js"></script>
|
|
<script type="text/javascript" src="navtree.js"></script>
|
|
<link href="search/search.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="search/searchdata.js"></script>
|
|
<script type="text/javascript" src="search/search.js"></script>
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
|
|
$(document).ready(function() { init_search(); });
|
|
/* @license-end */
|
|
</script>
|
|
<script type="text/x-mathjax-config">
|
|
MathJax.Hub.Config({
|
|
extensions: ["tex2jax.js", "TeX/AMSmath.js", "TeX/AMSsymbols.js"],
|
|
jax: ["input/TeX","output/HTML-CSS"],
|
|
});
|
|
</script>
|
|
<script type="text/javascript" async="async" src="https://cdn.jsdelivr.net/npm/mathjax@2/MathJax.js"></script>
|
|
<link href="$extra_stylesheet" rel="stylesheet" type="text/css" />
|
|
<link href="extra_stylesheet.css" rel="stylesheet" type="text/css"/>
|
|
<link href="version.css" rel="stylesheet" type="text/css" />
|
|
<script type="text/javascript" src="../version.js"></script>
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 55px;">
|
|
<td id="projectlogo" style="padding: 1.5em;"><img alt="Logo" src="cmsis_logo_white_small.png"/></td>
|
|
<td style="padding-left: 1em; padding-bottom: 1em;padding-top: 1em;">
|
|
<div id="projectname">CMSIS-DSP
|
|
 <span id="projectnumber"><script type="text/javascript">
|
|
<!--
|
|
writeHeader.call(this);
|
|
writeVersionDropdown(this);
|
|
//-->
|
|
</script>
|
|
</span>
|
|
</div>
|
|
<div id="projectbrief">CMSIS DSP Software Library</div>
|
|
</td>
|
|
<!--END !PROJECT_NAME-->
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.9.2 -->
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
|
|
var searchBox = new SearchBox("searchBox", "search",'Search','.html');
|
|
/* @license-end */
|
|
</script>
|
|
<div id="navrow1" class="tabs">
|
|
<ul class="tablist">
|
|
<li><a href="index.html"><span>Main Page</span></a></li>
|
|
<li><a href="pages.html"><span>Usage and Description</span></a></li>
|
|
<li class="current"><a href="modules.html"><span> API Reference</span></a></li>
|
|
<li>
|
|
<div id="MSearchBox" class="MSearchBoxInactive">
|
|
<span class="left">
|
|
<img id="MSearchSelect" src="search/mag_sel.svg"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
alt=""/>
|
|
<input type="text" id="MSearchField" value="Search" accesskey="S"
|
|
onfocus="searchBox.OnSearchFieldFocus(true)"
|
|
onblur="searchBox.OnSearchFieldFocus(false)"
|
|
onkeyup="searchBox.OnSearchFieldChange(event)"/>
|
|
</span><span class="right">
|
|
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.svg" alt=""/></a>
|
|
</span>
|
|
</div>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
</div><!-- top -->
|
|
<div id="side-nav" class="ui-resizable side-nav-resizable">
|
|
<div id="nav-tree">
|
|
<div id="nav-tree-contents">
|
|
<div id="nav-sync" class="sync"></div>
|
|
</div>
|
|
</div>
|
|
<div id="splitbar" style="-moz-user-select:none;"
|
|
class="ui-resizable-handle">
|
|
</div>
|
|
</div>
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
|
|
$(document).ready(function(){initNavTree('group__CFFT__CIFFT.html',''); initResizable(); });
|
|
/* @license-end */
|
|
</script>
|
|
<div id="doc-content">
|
|
<!-- window showing the filter options -->
|
|
<div id="MSearchSelectWindow"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
onkeydown="return searchBox.OnSearchSelectKey(event)">
|
|
</div>
|
|
|
|
<!-- iframe showing the search results (closed by default) -->
|
|
<div id="MSearchResultsWindow">
|
|
<iframe src="javascript:void(0)" frameborder="0"
|
|
name="MSearchResults" id="MSearchResults">
|
|
</iframe>
|
|
</div>
|
|
|
|
<div class="header">
|
|
<div class="summary">
|
|
<a href="#var-members">Variables</a> </div>
|
|
<div class="headertitle"><div class="title">Complex FFT Tables<div class="ingroups"><a class="el" href="group__groupTransforms.html">Transform Functions</a> » <a class="el" href="group__ComplexFFT.html">Complex FFT Functions</a></div></div></div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="var-members" name="var-members"></a>
|
|
Variables</h2></td></tr>
|
|
<tr class="memitem:gae247e83ad50d474107254e25b36ad42b"><td class="memItemLeft" align="right" valign="top">const uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gae247e83ad50d474107254e25b36ad42b">armBitRevTable</a> [1024]</td></tr>
|
|
<tr class="memdesc:gae247e83ad50d474107254e25b36ad42b"><td class="mdescLeft"> </td><td class="mdescRight">Table for bit reversal process. <a href="group__CFFT__CIFFT.html#gae247e83ad50d474107254e25b36ad42b">More...</a><br /></td></tr>
|
|
<tr class="separator:gae247e83ad50d474107254e25b36ad42b"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gabeb418730eacdce077316477b7f1e960"><td class="memItemLeft" align="right" valign="top">const uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gabeb418730eacdce077316477b7f1e960">twiddleCoefF64_16</a> [32]</td></tr>
|
|
<tr class="memdesc:gabeb418730eacdce077316477b7f1e960"><td class="mdescLeft"> </td><td class="mdescRight">Double Precision Floating-point Twiddle factors Table Generation. <a href="group__CFFT__CIFFT.html#gabeb418730eacdce077316477b7f1e960">More...</a><br /></td></tr>
|
|
<tr class="separator:gabeb418730eacdce077316477b7f1e960"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga3f7d1eaff3c6910ee7d85ae1c9015fe5"><td class="memItemLeft" align="right" valign="top">const uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga3f7d1eaff3c6910ee7d85ae1c9015fe5">twiddleCoefF64_32</a> [64]</td></tr>
|
|
<tr class="separator:ga3f7d1eaff3c6910ee7d85ae1c9015fe5"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga6fe9e2b9200445a2313d7542c586639b"><td class="memItemLeft" align="right" valign="top">const uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga6fe9e2b9200445a2313d7542c586639b">twiddleCoefF64_64</a> [128]</td></tr>
|
|
<tr class="separator:ga6fe9e2b9200445a2313d7542c586639b"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga252036ff16d9125ae72f547f4565f36f"><td class="memItemLeft" align="right" valign="top">const uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga252036ff16d9125ae72f547f4565f36f">twiddleCoefF64_128</a> [256]</td></tr>
|
|
<tr class="separator:ga252036ff16d9125ae72f547f4565f36f"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga10e83806d2c02cc4f5f07ce46851a673"><td class="memItemLeft" align="right" valign="top">const uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga10e83806d2c02cc4f5f07ce46851a673">twiddleCoefF64_256</a> [512]</td></tr>
|
|
<tr class="separator:ga10e83806d2c02cc4f5f07ce46851a673"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gadf57a6c3f49246e356cc72615c5dc8ba"><td class="memItemLeft" align="right" valign="top">const uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gadf57a6c3f49246e356cc72615c5dc8ba">twiddleCoefF64_512</a> [1024]</td></tr>
|
|
<tr class="separator:gadf57a6c3f49246e356cc72615c5dc8ba"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga6626143034266d76fafe4195cd59e9ef"><td class="memItemLeft" align="right" valign="top">const uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga6626143034266d76fafe4195cd59e9ef">twiddleCoefF64_1024</a> [2048]</td></tr>
|
|
<tr class="separator:ga6626143034266d76fafe4195cd59e9ef"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga0d6a794c1315cceaa884e3bdc736e576"><td class="memItemLeft" align="right" valign="top">const uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga0d6a794c1315cceaa884e3bdc736e576">twiddleCoefF64_2048</a> [4096]</td></tr>
|
|
<tr class="separator:ga0d6a794c1315cceaa884e3bdc736e576"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gac0f43575fce0ab5e30d8731924dbc6d3"><td class="memItemLeft" align="right" valign="top">const uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gac0f43575fce0ab5e30d8731924dbc6d3">twiddleCoefF64_4096</a> [8192]</td></tr>
|
|
<tr class="separator:gac0f43575fce0ab5e30d8731924dbc6d3"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gae75e243ec61706427314270f222e0c8e"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gae75e243ec61706427314270f222e0c8e">twiddleCoef_16</a> [32]</td></tr>
|
|
<tr class="separator:gae75e243ec61706427314270f222e0c8e"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga78a72c85d88185de98050c930cfc76e3"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga78a72c85d88185de98050c930cfc76e3">twiddleCoef_32</a> [64]</td></tr>
|
|
<tr class="separator:ga78a72c85d88185de98050c930cfc76e3"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga4f3c6d98c7e66393b4ef3ac63746e43d"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga4f3c6d98c7e66393b4ef3ac63746e43d">twiddleCoef_64</a> [128]</td></tr>
|
|
<tr class="separator:ga4f3c6d98c7e66393b4ef3ac63746e43d"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga948433536dafaac1381decfccf4e2d9c"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga948433536dafaac1381decfccf4e2d9c">twiddleCoef_128</a> [256]</td></tr>
|
|
<tr class="separator:ga948433536dafaac1381decfccf4e2d9c"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gafe813758a03a798e972359a092315be4"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gafe813758a03a798e972359a092315be4">twiddleCoef_256</a> [512]</td></tr>
|
|
<tr class="separator:gafe813758a03a798e972359a092315be4"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gad8830f0c068ab2cc19f2f87d220fa148"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gad8830f0c068ab2cc19f2f87d220fa148">twiddleCoef_512</a> [1024]</td></tr>
|
|
<tr class="separator:gad8830f0c068ab2cc19f2f87d220fa148"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga27c056eb130a4333d1cc5dd43ec738b1"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga27c056eb130a4333d1cc5dd43ec738b1">twiddleCoef_1024</a> [2048]</td></tr>
|
|
<tr class="separator:ga27c056eb130a4333d1cc5dd43ec738b1"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga23e7f30421a7905b21c2015429779633"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga23e7f30421a7905b21c2015429779633">twiddleCoef_2048</a> [4096]</td></tr>
|
|
<tr class="separator:ga23e7f30421a7905b21c2015429779633"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gae0182d1dd3b2f21aad4e38a815a0bd40"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gae0182d1dd3b2f21aad4e38a815a0bd40">twiddleCoef_4096</a> [8192]</td></tr>
|
|
<tr class="separator:gae0182d1dd3b2f21aad4e38a815a0bd40"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gaef4697e1ba348c4ac9358f2b9e279e93"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gaef4697e1ba348c4ac9358f2b9e279e93">twiddleCoef_16_q31</a> [24]</td></tr>
|
|
<tr class="memdesc:gaef4697e1ba348c4ac9358f2b9e279e93"><td class="mdescLeft"> </td><td class="mdescRight">Q31 Twiddle factors Table. <a href="group__CFFT__CIFFT.html#gaef4697e1ba348c4ac9358f2b9e279e93">More...</a><br /></td></tr>
|
|
<tr class="separator:gaef4697e1ba348c4ac9358f2b9e279e93"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga8ba78d5e6ef4bdc58e8f0044e0664a0a"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga8ba78d5e6ef4bdc58e8f0044e0664a0a">twiddleCoef_32_q31</a> [48]</td></tr>
|
|
<tr class="separator:ga8ba78d5e6ef4bdc58e8f0044e0664a0a"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga6e0a7e941a25a0d74b2e6590307de47e"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga6e0a7e941a25a0d74b2e6590307de47e">twiddleCoef_64_q31</a> [96]</td></tr>
|
|
<tr class="separator:ga6e0a7e941a25a0d74b2e6590307de47e"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gafecf9ed9873415d9f5f17f37b30c7250"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gafecf9ed9873415d9f5f17f37b30c7250">twiddleCoef_128_q31</a> [192]</td></tr>
|
|
<tr class="separator:gafecf9ed9873415d9f5f17f37b30c7250"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gaef1ea005053b715b851cf5f908168ede"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gaef1ea005053b715b851cf5f908168ede">twiddleCoef_256_q31</a> [384]</td></tr>
|
|
<tr class="separator:gaef1ea005053b715b851cf5f908168ede"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga416c61b2f08542a39111e06b0378bebe"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga416c61b2f08542a39111e06b0378bebe">twiddleCoef_512_q31</a> [768]</td></tr>
|
|
<tr class="separator:ga416c61b2f08542a39111e06b0378bebe"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga514443c44b62b8b3d240afefebcda310"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga514443c44b62b8b3d240afefebcda310">twiddleCoef_1024_q31</a> [1536]</td></tr>
|
|
<tr class="separator:ga514443c44b62b8b3d240afefebcda310"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga9c5767de9f5a409fd0c2027e6ac67179"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga9c5767de9f5a409fd0c2027e6ac67179">twiddleCoef_2048_q31</a> [3072]</td></tr>
|
|
<tr class="separator:ga9c5767de9f5a409fd0c2027e6ac67179"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga67c0890317deab3391e276f22c1fc400"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga67c0890317deab3391e276f22c1fc400">twiddleCoef_4096_q31</a> [6144]</td></tr>
|
|
<tr class="separator:ga67c0890317deab3391e276f22c1fc400"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga8e4e2e05f4a3112184c96cb3308d6c39"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga8e4e2e05f4a3112184c96cb3308d6c39">twiddleCoef_16_q15</a> [24]</td></tr>
|
|
<tr class="memdesc:ga8e4e2e05f4a3112184c96cb3308d6c39"><td class="mdescLeft"> </td><td class="mdescRight">q15 Twiddle factors Table <a href="group__CFFT__CIFFT.html#ga8e4e2e05f4a3112184c96cb3308d6c39">More...</a><br /></td></tr>
|
|
<tr class="separator:ga8e4e2e05f4a3112184c96cb3308d6c39"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gac194a4fe04a19051ae1811f69c6e5df2"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gac194a4fe04a19051ae1811f69c6e5df2">twiddleCoef_32_q15</a> [48]</td></tr>
|
|
<tr class="separator:gac194a4fe04a19051ae1811f69c6e5df2"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gaa0cc411e0b3c82078e85cfdf1b84290f"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gaa0cc411e0b3c82078e85cfdf1b84290f">twiddleCoef_64_q15</a> [96]</td></tr>
|
|
<tr class="separator:gaa0cc411e0b3c82078e85cfdf1b84290f"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gabfdd1c5cd2b3f96da5fe5f07c707a8e5"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gabfdd1c5cd2b3f96da5fe5f07c707a8e5">twiddleCoef_128_q15</a> [192]</td></tr>
|
|
<tr class="separator:gabfdd1c5cd2b3f96da5fe5f07c707a8e5"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga6099ae5262a0a3a8d9ce1e6da02f0c2e"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga6099ae5262a0a3a8d9ce1e6da02f0c2e">twiddleCoef_256_q15</a> [384]</td></tr>
|
|
<tr class="separator:ga6099ae5262a0a3a8d9ce1e6da02f0c2e"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga6152621af210f847128c6f38958fa385"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga6152621af210f847128c6f38958fa385">twiddleCoef_512_q15</a> [768]</td></tr>
|
|
<tr class="separator:ga6152621af210f847128c6f38958fa385"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga8a0ec95d866fe96b740e77d6e1356b59"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga8a0ec95d866fe96b740e77d6e1356b59">twiddleCoef_1024_q15</a> [1536]</td></tr>
|
|
<tr class="separator:ga8a0ec95d866fe96b740e77d6e1356b59"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gadd16ce08ffd1048c385e0534a3b19cbb"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gadd16ce08ffd1048c385e0534a3b19cbb">twiddleCoef_2048_q15</a> [3072]</td></tr>
|
|
<tr class="separator:gadd16ce08ffd1048c385e0534a3b19cbb"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga9b409d6995eab17805b1d1881d4bc652"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga9b409d6995eab17805b1d1881d4bc652">twiddleCoef_4096_q15</a> [6144]</td></tr>
|
|
<tr class="separator:ga9b409d6995eab17805b1d1881d4bc652"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga0712fc409d87a8db34051712b747663f"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga0712fc409d87a8db34051712b747663f">twiddleCoefF16_16</a> [32]</td></tr>
|
|
<tr class="memdesc:ga0712fc409d87a8db34051712b747663f"><td class="mdescLeft"> </td><td class="mdescRight">Floating-point Twiddle factors Table Generation. <a href="group__CFFT__CIFFT.html#ga0712fc409d87a8db34051712b747663f">More...</a><br /></td></tr>
|
|
<tr class="separator:ga0712fc409d87a8db34051712b747663f"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga9f659df35a21f12f471dfae20b73d9f2"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga9f659df35a21f12f471dfae20b73d9f2">twiddleCoefF16_32</a> [64]</td></tr>
|
|
<tr class="separator:ga9f659df35a21f12f471dfae20b73d9f2"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga44e6449538e49e951b118d29d1712efa"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga44e6449538e49e951b118d29d1712efa">twiddleCoefF16_64</a> [128]</td></tr>
|
|
<tr class="separator:ga44e6449538e49e951b118d29d1712efa"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga520dcb1deb9759e637a4d15712b5e54d"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga520dcb1deb9759e637a4d15712b5e54d">twiddleCoefF16_128</a> [256]</td></tr>
|
|
<tr class="separator:ga520dcb1deb9759e637a4d15712b5e54d"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga8c13337c591ad6d26896d1457624dd32"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga8c13337c591ad6d26896d1457624dd32">twiddleCoefF16_256</a> [512]</td></tr>
|
|
<tr class="separator:ga8c13337c591ad6d26896d1457624dd32"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gae0926a83b411af580f91a9ee172b01d8"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gae0926a83b411af580f91a9ee172b01d8">twiddleCoefF16_512</a> [1024]</td></tr>
|
|
<tr class="separator:gae0926a83b411af580f91a9ee172b01d8"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gacb45d1f03e14f9b268eef10034fbcbdb"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gacb45d1f03e14f9b268eef10034fbcbdb">twiddleCoefF16_1024</a> [2048]</td></tr>
|
|
<tr class="separator:gacb45d1f03e14f9b268eef10034fbcbdb"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga0a92c3c0905fd7afc2443d643583ee8b"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga0a92c3c0905fd7afc2443d643583ee8b">twiddleCoefF16_2048</a> [4096]</td></tr>
|
|
<tr class="separator:ga0a92c3c0905fd7afc2443d643583ee8b"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga94b170b59527155e38ee219d3ac06ba7"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga94b170b59527155e38ee219d3ac06ba7">twiddleCoefF16_4096</a> [8192]</td></tr>
|
|
<tr class="separator:ga94b170b59527155e38ee219d3ac06ba7"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga5db2c2615b07d2954f2539f364205aa5"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga5db2c2615b07d2954f2539f364205aa5">twiddleCoefF16_rfft_32</a> [32]</td></tr>
|
|
<tr class="separator:ga5db2c2615b07d2954f2539f364205aa5"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga33aa532c5c6e33fff9c677a4684a6cff"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga33aa532c5c6e33fff9c677a4684a6cff">twiddleCoefF16_rfft_64</a> [64]</td></tr>
|
|
<tr class="separator:ga33aa532c5c6e33fff9c677a4684a6cff"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gaed6eea756947ae87cc744c284d507ce1"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#gaed6eea756947ae87cc744c284d507ce1">twiddleCoefF16_rfft_128</a> [128]</td></tr>
|
|
<tr class="separator:gaed6eea756947ae87cc744c284d507ce1"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga02d891a91bb6a105dca581ba7e2226a2"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga02d891a91bb6a105dca581ba7e2226a2">twiddleCoefF16_rfft_256</a> [256]</td></tr>
|
|
<tr class="separator:ga02d891a91bb6a105dca581ba7e2226a2"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga53ec40ffb2cb25c6b8fbcfc507de1bc9"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga53ec40ffb2cb25c6b8fbcfc507de1bc9">twiddleCoefF16_rfft_512</a> [512]</td></tr>
|
|
<tr class="separator:ga53ec40ffb2cb25c6b8fbcfc507de1bc9"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga57c0abf28b7dcead6d7254a4968afaf7"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga57c0abf28b7dcead6d7254a4968afaf7">twiddleCoefF16_rfft_1024</a> [1024]</td></tr>
|
|
<tr class="separator:ga57c0abf28b7dcead6d7254a4968afaf7"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga0e45fe586abf8be703ed209eaf18b0fe"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga0e45fe586abf8be703ed209eaf18b0fe">twiddleCoefF16_rfft_2048</a> [2048]</td></tr>
|
|
<tr class="separator:ga0e45fe586abf8be703ed209eaf18b0fe"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga190d7fce6e881c88942f5afdded987af"><td class="memItemLeft" align="right" valign="top">const float16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CFFT__CIFFT.html#ga190d7fce6e881c88942f5afdded987af">twiddleCoefF16_rfft_4096</a> [4096]</td></tr>
|
|
<tr class="separator:ga190d7fce6e881c88942f5afdded987af"><td class="memSeparator" colspan="2"> </td></tr>
|
|
</table>
|
|
<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
|
|
<h2 class="groupheader">Variable Documentation</h2>
|
|
<a id="gae247e83ad50d474107254e25b36ad42b" name="gae247e83ad50d474107254e25b36ad42b"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gae247e83ad50d474107254e25b36ad42b">◆ </a></span>armBitRevTable</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint16_t armBitRevTable[1024]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Pseudo code for Generation of Bit reversal Table is </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (l = 1; l <= N/4; l++)
|
|
{
|
|
for (i = 0; i< logN2; i++)
|
|
{
|
|
a[i] = l & (1 << i);
|
|
}
|
|
for (j = 0; j < logN2; j++)
|
|
{
|
|
if (a[j] != 0)
|
|
y[l] += (1 << ((logN2 - 1) - j));
|
|
}
|
|
y[l] = y[l] >> 1;
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 4096, logN2 = 12 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>N is the maximum FFT Size supported </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga27c056eb130a4333d1cc5dd43ec738b1" name="ga27c056eb130a4333d1cc5dd43ec738b1"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga27c056eb130a4333d1cc5dd43ec738b1">◆ </a></span>twiddleCoef_1024</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> twiddleCoef_1024[2048]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 1024, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga8a0ec95d866fe96b740e77d6e1356b59" name="ga8a0ec95d866fe96b740e77d6e1356b59"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga8a0ec95d866fe96b740e77d6e1356b59">◆ </a></span>twiddleCoef_1024_q15</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> twiddleCoef_1024_q15[1536]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for q15 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefq15[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefq15[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 1024, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to q15(Fixed point 1.15): round(twiddleCoefq15(i) * pow(2, 15)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga514443c44b62b8b3d240afefebcda310" name="ga514443c44b62b8b3d240afefebcda310"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga514443c44b62b8b3d240afefebcda310">◆ </a></span>twiddleCoef_1024_q31</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> twiddleCoef_1024_q31[1536]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Q31 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefQ31[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefQ31[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 1024, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to Q31(Fixed point 1.31): round(twiddleCoefQ31(i) * pow(2, 31)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga948433536dafaac1381decfccf4e2d9c" name="ga948433536dafaac1381decfccf4e2d9c"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga948433536dafaac1381decfccf4e2d9c">◆ </a></span>twiddleCoef_128</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> twiddleCoef_128[256]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 128, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gabfdd1c5cd2b3f96da5fe5f07c707a8e5" name="gabfdd1c5cd2b3f96da5fe5f07c707a8e5"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gabfdd1c5cd2b3f96da5fe5f07c707a8e5">◆ </a></span>twiddleCoef_128_q15</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> twiddleCoef_128_q15[192]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for q15 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefq15[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefq15[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 128, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to q15(Fixed point 1.15): round(twiddleCoefq15(i) * pow(2, 15)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gafecf9ed9873415d9f5f17f37b30c7250" name="gafecf9ed9873415d9f5f17f37b30c7250"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gafecf9ed9873415d9f5f17f37b30c7250">◆ </a></span>twiddleCoef_128_q31</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> twiddleCoef_128_q31[192]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Q31 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i < 3N/4; i++)
|
|
{
|
|
twiddleCoefQ31[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefQ31[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 128, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to Q31(Fixed point 1.31): round(twiddleCoefQ31(i) * pow(2, 31)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gae75e243ec61706427314270f222e0c8e" name="gae75e243ec61706427314270f222e0c8e"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gae75e243ec61706427314270f222e0c8e">◆ </a></span>twiddleCoef_16</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> twiddleCoef_16[32]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
|
|
<div class="line"> 1.000000000f, 0.000000000f,</div>
|
|
<div class="line"> 0.923879533f, 0.382683432f,</div>
|
|
<div class="line"> 0.707106781f, 0.707106781f,</div>
|
|
<div class="line"> 0.382683432f, 0.923879533f,</div>
|
|
<div class="line"> 0.000000000f, 1.000000000f,</div>
|
|
<div class="line"> -0.382683432f, 0.923879533f,</div>
|
|
<div class="line"> -0.707106781f, 0.707106781f,</div>
|
|
<div class="line"> -0.923879533f, 0.382683432f,</div>
|
|
<div class="line"> -1.000000000f, 0.000000000f,</div>
|
|
<div class="line"> -0.923879533f, -0.382683432f,</div>
|
|
<div class="line"> -0.707106781f, -0.707106781f,</div>
|
|
<div class="line"> -0.382683432f, -0.923879533f,</div>
|
|
<div class="line"> -0.000000000f, -1.000000000f,</div>
|
|
<div class="line"> 0.382683432f, -0.923879533f,</div>
|
|
<div class="line"> 0.707106781f, -0.707106781f,</div>
|
|
<div class="line"> 0.923879533f, -0.382683432f</div>
|
|
<div class="line">}</div>
|
|
</div><!-- fragment --><dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i < N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 16, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga8e4e2e05f4a3112184c96cb3308d6c39" name="ga8e4e2e05f4a3112184c96cb3308d6c39"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga8e4e2e05f4a3112184c96cb3308d6c39">◆ </a></span>twiddleCoef_16_q15</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> twiddleCoef_16_q15[24]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7FFF, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0000,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7641, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x30FB,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5A82, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5A82,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x30FB, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7641,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0000, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7FFF,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xCF04, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7641,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xA57D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5A82,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x89BE, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x30FB,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8000, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0000,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x89BE, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xCF04,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xA57D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xA57D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xCF04, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x89BE</div>
|
|
<div class="line">}</div>
|
|
</div><!-- fragment --><dl class="section user"><dt></dt><dd>Example code for q15 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>fori = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefq15[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefq15[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 16, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to q15(Fixed point 1.15): round(twiddleCoefq15(i) * pow(2, 15)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gaef4697e1ba348c4ac9358f2b9e279e93" name="gaef4697e1ba348c4ac9358f2b9e279e93"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gaef4697e1ba348c4ac9358f2b9e279e93">◆ </a></span>twiddleCoef_16_q31</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> twiddleCoef_16_q31[24]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7FFFFFFF, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x00000000,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7641AF3C, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x30FBC54D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x5A82799A, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x5A82799A,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x30FBC54D, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7641AF3C,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x00000000, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7FFFFFFF,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xCF043AB2, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7641AF3C,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xA57D8666, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x5A82799A,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x89BE50C3, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x30FBC54D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x80000000, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x00000000,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x89BE50C3, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xCF043AB2,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xA57D8666, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xA57D8666,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xCF043AB2, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x89BE50C3</div>
|
|
<div class="line">}</div>
|
|
</div><!-- fragment --><dl class="section user"><dt></dt><dd>Example code for Q31 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre> for(i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefQ31[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefQ31[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 16, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to Q31(Fixed point 1.31): round(twiddleCoefQ31(i) * pow(2, 31)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga23e7f30421a7905b21c2015429779633" name="ga23e7f30421a7905b21c2015429779633"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga23e7f30421a7905b21c2015429779633">◆ </a></span>twiddleCoef_2048</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> twiddleCoef_2048[4096]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 2048, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gadd16ce08ffd1048c385e0534a3b19cbb" name="gadd16ce08ffd1048c385e0534a3b19cbb"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gadd16ce08ffd1048c385e0534a3b19cbb">◆ </a></span>twiddleCoef_2048_q15</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> twiddleCoef_2048_q15[3072]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for q15 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefq15[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefq15[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 2048, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to q15(Fixed point 1.15): round(twiddleCoefq15(i) * pow(2, 15)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga9c5767de9f5a409fd0c2027e6ac67179" name="ga9c5767de9f5a409fd0c2027e6ac67179"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga9c5767de9f5a409fd0c2027e6ac67179">◆ </a></span>twiddleCoef_2048_q31</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> twiddleCoef_2048_q31[3072]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Q31 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefQ31[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefQ31[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 2048, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to Q31(Fixed point 1.31): round(twiddleCoefQ31(i) * pow(2, 31)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gafe813758a03a798e972359a092315be4" name="gafe813758a03a798e972359a092315be4"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gafe813758a03a798e972359a092315be4">◆ </a></span>twiddleCoef_256</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> twiddleCoef_256[512]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 256, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga6099ae5262a0a3a8d9ce1e6da02f0c2e" name="ga6099ae5262a0a3a8d9ce1e6da02f0c2e"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga6099ae5262a0a3a8d9ce1e6da02f0c2e">◆ </a></span>twiddleCoef_256_q15</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> twiddleCoef_256_q15[384]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for q15 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefq15[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefq15[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 256, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to q15(Fixed point 1.15): round(twiddleCoefq15(i) * pow(2, 15)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gaef1ea005053b715b851cf5f908168ede" name="gaef1ea005053b715b851cf5f908168ede"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gaef1ea005053b715b851cf5f908168ede">◆ </a></span>twiddleCoef_256_q31</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> twiddleCoef_256_q31[384]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Q31 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefQ31[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefQ31[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 256, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to Q31(Fixed point 1.31): round(twiddleCoefQ31(i) * pow(2, 31)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga78a72c85d88185de98050c930cfc76e3" name="ga78a72c85d88185de98050c930cfc76e3"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga78a72c85d88185de98050c930cfc76e3">◆ </a></span>twiddleCoef_32</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> twiddleCoef_32[64]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 32, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gac194a4fe04a19051ae1811f69c6e5df2" name="gac194a4fe04a19051ae1811f69c6e5df2"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gac194a4fe04a19051ae1811f69c6e5df2">◆ </a></span>twiddleCoef_32_q15</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> twiddleCoef_32_q15[48]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7FFF, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0000,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7D8A, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x18F8,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7641, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x30FB,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x6A6D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x471C,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5A82, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5A82,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x471C, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x6A6D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x30FB, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7641,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x18F8, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7D8A,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0000, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7FFF,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xE707, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7D8A,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xCF04, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7641,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xB8E3, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x6A6D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xA57D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5A82,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x9592, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x471C,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x89BE, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x30FB,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8275, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x18F8,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8000, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0000,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8275, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xE707,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x89BE, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xCF04,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x9592, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xB8E3,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xA57D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xA57D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xB8E3, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x9592,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xCF04, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x89BE,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xE707, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8275</div>
|
|
<div class="line">}</div>
|
|
</div><!-- fragment --><dl class="section user"><dt></dt><dd>Example code for q15 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefq15[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefq15[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 32, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to q15(Fixed point 1.15): round(twiddleCoefq15(i) * pow(2, 15)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga8ba78d5e6ef4bdc58e8f0044e0664a0a" name="ga8ba78d5e6ef4bdc58e8f0044e0664a0a"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga8ba78d5e6ef4bdc58e8f0044e0664a0a">◆ </a></span>twiddleCoef_32_q31</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> twiddleCoef_32_q31[48]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7FFFFFFF, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x00000000,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7D8A5F3F, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x18F8B83C,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7641AF3C, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x30FBC54D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x6A6D98A4, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x471CECE6,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x5A82799A, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x5A82799A,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x471CECE6, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x6A6D98A4,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x30FBC54D, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7641AF3C,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x18F8B83C, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7D8A5F3F,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x00000000, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7FFFFFFF,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xE70747C3, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7D8A5F3F,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xCF043AB2, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x7641AF3C,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xB8E31319, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x6A6D98A4,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xA57D8666, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x5A82799A,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x9592675B, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x471CECE6,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x89BE50C3, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x30FBC54D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x8275A0C0, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x18F8B83C,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x80000000, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x00000000,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x8275A0C0, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xE70747C3,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x89BE50C3, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xCF043AB2,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x9592675B, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xB8E31319,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xA57D8666, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xA57D8666,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xB8E31319, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x9592675B,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xCF043AB2, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x89BE50C3,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0xE70747C3, (<a class="code hl_typedef" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a>)0x8275A0C0</div>
|
|
<div class="line">}</div>
|
|
</div><!-- fragment --><dl class="section user"><dt></dt><dd>Example code for Q31 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefQ31[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefQ31[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 32, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to Q31(Fixed point 1.31): round(twiddleCoefQ31(i) * pow(2, 31)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gae0182d1dd3b2f21aad4e38a815a0bd40" name="gae0182d1dd3b2f21aad4e38a815a0bd40"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gae0182d1dd3b2f21aad4e38a815a0bd40">◆ </a></span>twiddleCoef_4096</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> twiddleCoef_4096[8192]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 4096, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga9b409d6995eab17805b1d1881d4bc652" name="ga9b409d6995eab17805b1d1881d4bc652"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga9b409d6995eab17805b1d1881d4bc652">◆ </a></span>twiddleCoef_4096_q15</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> twiddleCoef_4096_q15[6144]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for q15 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefq15[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefq15[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 4096, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to q15(Fixed point 1.15): round(twiddleCoefq15(i) * pow(2, 15)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga67c0890317deab3391e276f22c1fc400" name="ga67c0890317deab3391e276f22c1fc400"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga67c0890317deab3391e276f22c1fc400">◆ </a></span>twiddleCoef_4096_q31</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> twiddleCoef_4096_q31[6144]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Q31 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefQ31[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefQ31[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 4096, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to Q31(Fixed point 1.31): round(twiddleCoefQ31(i) * pow(2, 31)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gad8830f0c068ab2cc19f2f87d220fa148" name="gad8830f0c068ab2cc19f2f87d220fa148"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gad8830f0c068ab2cc19f2f87d220fa148">◆ </a></span>twiddleCoef_512</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> twiddleCoef_512[1024]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 512, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga6152621af210f847128c6f38958fa385" name="ga6152621af210f847128c6f38958fa385"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga6152621af210f847128c6f38958fa385">◆ </a></span>twiddleCoef_512_q15</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> twiddleCoef_512_q15[768]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for q15 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefq15[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefq15[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 512, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to q15(Fixed point 1.15): round(twiddleCoefq15(i) * pow(2, 15)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga416c61b2f08542a39111e06b0378bebe" name="ga416c61b2f08542a39111e06b0378bebe"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga416c61b2f08542a39111e06b0378bebe">◆ </a></span>twiddleCoef_512_q31</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> twiddleCoef_512_q31[768]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Q31 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefQ31[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefQ31[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 512, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to Q31(Fixed point 1.31): round(twiddleCoefQ31(i) * pow(2, 31)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga4f3c6d98c7e66393b4ef3ac63746e43d" name="ga4f3c6d98c7e66393b4ef3ac63746e43d"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga4f3c6d98c7e66393b4ef3ac63746e43d">◆ </a></span>twiddleCoef_64</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> twiddleCoef_64[128]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i < N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 64, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gaa0cc411e0b3c82078e85cfdf1b84290f" name="gaa0cc411e0b3c82078e85cfdf1b84290f"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gaa0cc411e0b3c82078e85cfdf1b84290f">◆ </a></span>twiddleCoef_64_q15</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> twiddleCoef_64_q15[96]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7FFF, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0000, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7F62, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0C8B,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7D8A, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x18F8, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7A7D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x2528,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7641, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x30FB, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x70E2, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x3C56,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x6A6D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x471C, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x62F2, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5133,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5A82, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5A82, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5133, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x62F2,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x471C, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x6A6D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x3C56, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x70E2,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x30FB, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7641, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x2528, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7A7D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x18F8, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7D8A, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0C8B, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7F62,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0000, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7FFF, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xF374, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7F62,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xE707, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7D8A, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xDAD7, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7A7D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xCF04, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x7641, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xC3A9, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x70E2,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xB8E3, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x6A6D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xAECC, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x62F2,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xA57D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5A82, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x9D0D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x5133,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x9592, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x471C, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8F1D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x3C56,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x89BE, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x30FB, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8582, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x2528,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8275, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x18F8, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x809D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0C8B,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8000, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x0000, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x809D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xF374,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8275, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xE707, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8582, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xDAD7,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x89BE, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xCF04, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8F1D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xC3A9,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x9592, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xB8E3, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x9D0D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xAECC,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xA57D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xA57D, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xAECC, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x9D0D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xB8E3, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x9592, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xC3A9, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8F1D,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xCF04, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x89BE, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xDAD7, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8582,</div>
|
|
<div class="line"> (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xE707, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x8275, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0xF374, (<a class="code hl_typedef" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea" title="16-bit fractional data type in 1.15 format.">q15_t</a>)0x809D</div>
|
|
<div class="line">}</div>
|
|
</div><!-- fragment --><dl class="section user"><dt></dt><dd>Example code for q15 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefq15[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefq15[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 64, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to q15(Fixed point 1.15): round(twiddleCoefq15(i) * pow(2, 15)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga6e0a7e941a25a0d74b2e6590307de47e" name="ga6e0a7e941a25a0d74b2e6590307de47e"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga6e0a7e941a25a0d74b2e6590307de47e">◆ </a></span>twiddleCoef_64_q31</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> twiddleCoef_64_q31[96]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Q31 Twiddle factors Generation:: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< 3N/4; i++)
|
|
{
|
|
twiddleCoefQ31[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoefQ31[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 64, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are interleaved fashion </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Convert Floating point to Q31(Fixed point 1.31): round(twiddleCoefQ31(i) * pow(2, 31)) </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gacb45d1f03e14f9b268eef10034fbcbdb" name="gacb45d1f03e14f9b268eef10034fbcbdb"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gacb45d1f03e14f9b268eef10034fbcbdb">◆ </a></span>twiddleCoefF16_1024</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_1024[2048]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 1024 and PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga520dcb1deb9759e637a4d15712b5e54d" name="ga520dcb1deb9759e637a4d15712b5e54d"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga520dcb1deb9759e637a4d15712b5e54d">◆ </a></span>twiddleCoefF16_128</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_128[256]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 128 and PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga0712fc409d87a8db34051712b747663f" name="ga0712fc409d87a8db34051712b747663f"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga0712fc409d87a8db34051712b747663f">◆ </a></span>twiddleCoefF16_16</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_16[32]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
|
|
<div class="line"> (float16_t)1.000000000f, (float16_t)0.000000000f,</div>
|
|
<div class="line"> (float16_t)0.923879533f, (float16_t)0.382683432f,</div>
|
|
<div class="line"> (float16_t)0.707106781f, (float16_t)0.707106781f,</div>
|
|
<div class="line"> (float16_t)0.382683432f, (float16_t)0.923879533f,</div>
|
|
<div class="line"> (float16_t)0.000000000f, (float16_t)1.000000000f,</div>
|
|
<div class="line"> (float16_t)-0.382683432f, (float16_t)0.923879533f,</div>
|
|
<div class="line"> (float16_t)-0.707106781f, (float16_t)0.707106781f,</div>
|
|
<div class="line"> (float16_t)-0.923879533f, (float16_t)0.382683432f,</div>
|
|
<div class="line"> (float16_t)-1.000000000f, (float16_t)0.000000000f,</div>
|
|
<div class="line"> (float16_t)-0.923879533f, (float16_t)-0.382683432f,</div>
|
|
<div class="line"> (float16_t)-0.707106781f, (float16_t)-0.707106781f,</div>
|
|
<div class="line"> (float16_t)-0.382683432f, (float16_t)-0.923879533f,</div>
|
|
<div class="line"> (float16_t)-0.000000000f, (float16_t)-1.000000000f,</div>
|
|
<div class="line"> (float16_t)0.382683432f, (float16_t)-0.923879533f,</div>
|
|
<div class="line"> (float16_t)0.707106781f, (float16_t)-0.707106781f,</div>
|
|
<div class="line"> (float16_t)0.923879533f, (float16_t)-0.382683432f</div>
|
|
<div class="line">}</div>
|
|
</div><!-- fragment --><dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 16 and PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga0a92c3c0905fd7afc2443d643583ee8b" name="ga0a92c3c0905fd7afc2443d643583ee8b"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga0a92c3c0905fd7afc2443d643583ee8b">◆ </a></span>twiddleCoefF16_2048</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_2048[4096]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 2048 and PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga8c13337c591ad6d26896d1457624dd32" name="ga8c13337c591ad6d26896d1457624dd32"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga8c13337c591ad6d26896d1457624dd32">◆ </a></span>twiddleCoefF16_256</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_256[512]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 256 and PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga9f659df35a21f12f471dfae20b73d9f2" name="ga9f659df35a21f12f471dfae20b73d9f2"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga9f659df35a21f12f471dfae20b73d9f2">◆ </a></span>twiddleCoefF16_32</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_32[64]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 32 and PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga94b170b59527155e38ee219d3ac06ba7" name="ga94b170b59527155e38ee219d3ac06ba7"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga94b170b59527155e38ee219d3ac06ba7">◆ </a></span>twiddleCoefF16_4096</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_4096[8192]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 4096 and PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gae0926a83b411af580f91a9ee172b01d8" name="gae0926a83b411af580f91a9ee172b01d8"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gae0926a83b411af580f91a9ee172b01d8">◆ </a></span>twiddleCoefF16_512</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_512[1024]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 512 and PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga44e6449538e49e951b118d29d1712efa" name="ga44e6449538e49e951b118d29d1712efa"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga44e6449538e49e951b118d29d1712efa">◆ </a></span>twiddleCoefF16_64</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_64[128]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i]= cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1]= sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 64 and PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga57c0abf28b7dcead6d7254a4968afaf7" name="ga57c0abf28b7dcead6d7254a4968afaf7"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga57c0abf28b7dcead6d7254a4968afaf7">◆ </a></span>twiddleCoefF16_rfft_1024</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_rfft_1024[1024]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gaed6eea756947ae87cc744c284d507ce1" name="gaed6eea756947ae87cc744c284d507ce1"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gaed6eea756947ae87cc744c284d507ce1">◆ </a></span>twiddleCoefF16_rfft_128</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_rfft_128[128]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga0e45fe586abf8be703ed209eaf18b0fe" name="ga0e45fe586abf8be703ed209eaf18b0fe"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga0e45fe586abf8be703ed209eaf18b0fe">◆ </a></span>twiddleCoefF16_rfft_2048</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_rfft_2048[2048]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga02d891a91bb6a105dca581ba7e2226a2" name="ga02d891a91bb6a105dca581ba7e2226a2"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga02d891a91bb6a105dca581ba7e2226a2">◆ </a></span>twiddleCoefF16_rfft_256</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_rfft_256[256]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga5db2c2615b07d2954f2539f364205aa5" name="ga5db2c2615b07d2954f2539f364205aa5"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga5db2c2615b07d2954f2539f364205aa5">◆ </a></span>twiddleCoefF16_rfft_32</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_rfft_32[32]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
|
|
<div class="line"> (float16_t)0.000000000f, (float16_t)1.000000000f,</div>
|
|
<div class="line"> (float16_t)0.195090322f, (float16_t)0.980785280f,</div>
|
|
<div class="line"> (float16_t)0.382683432f, (float16_t)0.923879533f,</div>
|
|
<div class="line"> (float16_t)0.555570233f, (float16_t)0.831469612f,</div>
|
|
<div class="line"> (float16_t)0.707106781f, (float16_t)0.707106781f,</div>
|
|
<div class="line"> (float16_t)0.831469612f, (float16_t)0.555570233f,</div>
|
|
<div class="line"> (float16_t)0.923879533f, (float16_t)0.382683432f,</div>
|
|
<div class="line"> (float16_t)0.980785280f, (float16_t)0.195090322f,</div>
|
|
<div class="line"> (float16_t)1.000000000f, (float16_t)0.000000000f,</div>
|
|
<div class="line"> (float16_t)0.980785280f, (float16_t)-0.195090322f,</div>
|
|
<div class="line"> (float16_t)0.923879533f, (float16_t)-0.382683432f,</div>
|
|
<div class="line"> (float16_t)0.831469612f, (float16_t)-0.555570233f,</div>
|
|
<div class="line"> (float16_t)0.707106781f, (float16_t)-0.707106781f,</div>
|
|
<div class="line"> (float16_t)0.555570233f, (float16_t)-0.831469612f,</div>
|
|
<div class="line"> (float16_t)0.382683432f, (float16_t)-0.923879533f,</div>
|
|
<div class="line"> (float16_t)0.195090322f, (float16_t)-0.980785280f</div>
|
|
<div class="line">}</div>
|
|
</div><!-- fragment --><dl class="section user"><dt></dt><dd>Example code for Floating-point RFFT Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>TW = exp(pi/2*i-2*pi*i*[0:L/2-1]/L).' </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Real and Imag values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga190d7fce6e881c88942f5afdded987af" name="ga190d7fce6e881c88942f5afdded987af"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga190d7fce6e881c88942f5afdded987af">◆ </a></span>twiddleCoefF16_rfft_4096</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_rfft_4096[4096]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga53ec40ffb2cb25c6b8fbcfc507de1bc9" name="ga53ec40ffb2cb25c6b8fbcfc507de1bc9"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga53ec40ffb2cb25c6b8fbcfc507de1bc9">◆ </a></span>twiddleCoefF16_rfft_512</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_rfft_512[512]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga33aa532c5c6e33fff9c677a4684a6cff" name="ga33aa532c5c6e33fff9c677a4684a6cff"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga33aa532c5c6e33fff9c677a4684a6cff">◆ </a></span>twiddleCoefF16_rfft_64</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const float16_t twiddleCoefF16_rfft_64[64]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga6626143034266d76fafe4195cd59e9ef" name="ga6626143034266d76fafe4195cd59e9ef"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga6626143034266d76fafe4195cd59e9ef">◆ </a></span>twiddleCoefF64_1024</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint64_t twiddleCoefF64_1024[2048]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Double Precision Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 1024, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga252036ff16d9125ae72f547f4565f36f" name="ga252036ff16d9125ae72f547f4565f36f"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga252036ff16d9125ae72f547f4565f36f">◆ </a></span>twiddleCoefF64_128</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint64_t twiddleCoefF64_128[256]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Double Precision Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 128, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gabeb418730eacdce077316477b7f1e960" name="gabeb418730eacdce077316477b7f1e960"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gabeb418730eacdce077316477b7f1e960">◆ </a></span>twiddleCoefF64_16</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint64_t twiddleCoefF64_16[32]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
|
|
<div class="line"> 0x3ff0000000000000, 0x0000000000000000, </div>
|
|
<div class="line"> 0x3fed906bcf328d46, 0x3fd87de2a6aea963, </div>
|
|
<div class="line"> 0x3fe6a09e667f3bcc, 0x3fe6a09e667f3bcc, </div>
|
|
<div class="line"> 0x3fd87de2a6aea963, 0x3fed906bcf328d46, </div>
|
|
<div class="line"> 0x0000000000000000, 0x3ff0000000000000, </div>
|
|
<div class="line"> 0xbfd87de2a6aea963, 0x3fed906bcf328d46, </div>
|
|
<div class="line"> 0xbfe6a09e667f3bcc, 0x3fe6a09e667f3bcc, </div>
|
|
<div class="line"> 0xbfed906bcf328d46, 0x3fd87de2a6aea963, </div>
|
|
<div class="line"> 0xbff0000000000000, 0x0000000000000000, </div>
|
|
<div class="line"> 0xbfed906bcf328d46, 0xbfd87de2a6aea963, </div>
|
|
<div class="line"> 0xbfe6a09e667f3bcc, 0xbfe6a09e667f3bcc, </div>
|
|
<div class="line"> 0xbfd87de2a6aea963, 0xbfed906bcf328d46, </div>
|
|
<div class="line"> 0x0000000000000000, 0xbff0000000000000, </div>
|
|
<div class="line"> 0x3fd87de2a6aea963, 0xbfed906bcf328d46, </div>
|
|
<div class="line"> 0x3fe6a09e667f3bcc, 0xbfe6a09e667f3bcc, </div>
|
|
<div class="line"> 0x3fed906bcf328d46, 0xbfd87de2a6aea963, </div>
|
|
<div class="line">}</div>
|
|
</div><!-- fragment --><dl class="section user"><dt></dt><dd>Example code for Double Precision Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i < N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(double)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(double)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 16, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga0d6a794c1315cceaa884e3bdc736e576" name="ga0d6a794c1315cceaa884e3bdc736e576"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga0d6a794c1315cceaa884e3bdc736e576">◆ </a></span>twiddleCoefF64_2048</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint64_t twiddleCoefF64_2048[4096]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Double Precision Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 2048, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga10e83806d2c02cc4f5f07ce46851a673" name="ga10e83806d2c02cc4f5f07ce46851a673"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga10e83806d2c02cc4f5f07ce46851a673">◆ </a></span>twiddleCoefF64_256</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint64_t twiddleCoefF64_256[512]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Double Precision Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 256, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga3f7d1eaff3c6910ee7d85ae1c9015fe5" name="ga3f7d1eaff3c6910ee7d85ae1c9015fe5"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga3f7d1eaff3c6910ee7d85ae1c9015fe5">◆ </a></span>twiddleCoefF64_32</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint64_t twiddleCoefF64_32[64]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Double Precision Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 32, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gac0f43575fce0ab5e30d8731924dbc6d3" name="gac0f43575fce0ab5e30d8731924dbc6d3"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gac0f43575fce0ab5e30d8731924dbc6d3">◆ </a></span>twiddleCoefF64_4096</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint64_t twiddleCoefF64_4096[8192]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Double Precision Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 4096, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gadf57a6c3f49246e356cc72615c5dc8ba" name="gadf57a6c3f49246e356cc72615c5dc8ba"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gadf57a6c3f49246e356cc72615c5dc8ba">◆ </a></span>twiddleCoefF64_512</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint64_t twiddleCoefF64_512[1024]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Double Precision Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for (i = 0; i< N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 512, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a id="ga6fe9e2b9200445a2313d7542c586639b" name="ga6fe9e2b9200445a2313d7542c586639b"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga6fe9e2b9200445a2313d7542c586639b">◆ </a></span>twiddleCoefF64_64</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const uint64_t twiddleCoefF64_64[128]</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="section user"><dt></dt><dd>Example code for Double Precision Floating-point Twiddle factors Generation: </dd></dl>
|
|
<dl class="section user"><dt></dt><dd><pre>for(i = 0; i < N/; i++)
|
|
{
|
|
twiddleCoef[2*i] = cos(i * 2*PI/(float)N);
|
|
twiddleCoef[2*i+1] = sin(i * 2*PI/(float)N);
|
|
} </pre> </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>where N = 64, PI = 3.14159265358979 </dd></dl>
|
|
<dl class="section user"><dt></dt><dd>Cos and Sin values are in interleaved fashion </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
</div><!-- contents -->
|
|
</div><!-- doc-content -->
|
|
<!-- start footer part -->
|
|
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
|
|
<ul>
|
|
<li class="footer">
|
|
<script type="text/javascript">
|
|
<!--
|
|
writeFooter.call(this);
|
|
//-->
|
|
</script>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
</body>
|
|
</html>
|