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| author | shamikam | 2017-11-07 15:59:48 +0530 |
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| committer | shamikam | 2017-11-07 15:59:48 +0530 |
| commit | c0c0582462720ed597b00e116506570577614e89 (patch) | |
| tree | 31dedd23698e5357b19c810b7d7a8464100ef44a /help/en_US/scilab_en_US_help/goertzel.html | |
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diff --git a/help/en_US/scilab_en_US_help/goertzel.html b/help/en_US/scilab_en_US_help/goertzel.html new file mode 100644 index 0000000..09e4739 --- /dev/null +++ b/help/en_US/scilab_en_US_help/goertzel.html @@ -0,0 +1,89 @@ +<html><head> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> + <title>goertzel</title> + <style type="text/css" media="all"> + @import url("scilab_code.css"); + @import url("xml_code.css"); + @import url("c_code.css"); + @import url("style.css"); + </style> + </head> + <body> + <div class="manualnavbar"> + <table width="100%"><tr> + <td width="30%"> + <span class="previous"><a href="gmonopuls.html"><< gmonopuls</a></span> + + </td> + <td width="40%" class="center"> + <span class="top"><a href="section_be19baaac84b122b8ad501d34462f5bf.html">FOSSEE Signal Processing Toolbox</a></span> + + </td> + <td width="30%" class="next"> + <span class="next"><a href="grpdelay.html">grpdelay >></a></span> + + </td> + </tr></table> + <hr /> + </div> + + + + <span class="path"><a href="index.html">FOSSEE Signal Processing Toolbox</a> >> <a href="section_be19baaac84b122b8ad501d34462f5bf.html">FOSSEE Signal Processing Toolbox</a> > goertzel</span> + + <br /><br /> + <div class="refnamediv"><h1 class="refname">goertzel</h1> + <p class="refpurpose">Computes DFT using the second order Goertzel Algorithm</p></div> + + +<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3> + <div class="synopsis"><pre><span class="default">Y</span><span class="default"> = </span><span class="functionid">goertzel</span><span class="default">(</span><span class="default">X</span><span class="default">,</span><span class="default">INDVEC</span><span class="default">,</span><span class="default">DIM</span><span class="default">)</span></pre></div></div> + +<div class="refsection"><h3 class="title">Parameters</h3> + <dl></dl></div> + +<div class="refsection"><h3 class="title">Description</h3> + <p class="para">goertzel(X,INDVEC) +Computes the DFT of X at indices INDVEC using the second order algorithm along +the first non-singleton dimension. Elements of INDVEC must be positive integers +less than the length of the first non-singleton dimension. If INDVEC is empty +the DFT is computed at all indices along the first non-singleton dimension +goertzel(X,INDVEC,DIM) +Implements the algorithm along dimension DIM +In general goertzel is slower than fft when computing the DFT for all indices +along a particular dimension. However it is computationally more efficient when +the DFT at only a subset of indices is desired +Example +x=rand(1,5) +x =</p> + <p class="para">0.6283918 0.8497452 0.6857310 0.8782165 0.0683740 +y=goertzel(x,2); +y =</p> + <p class="para">- 0.3531539 - 0.6299881i +Author +Ankur Mallick +References +Goertzel, G. (January 1958), "An Algorithm for the Evaluation of Finite Trigonometric Series", American Mathematical Monthly 65 (1): 34–35, doi:10.2307/2310304</p></div> + <br /> + + <div class="manualnavbar"> + <table width="100%"> + <tr><td colspan="3" class="next"><a href="http://bugzilla.scilab.org/enter_bug.cgi?product=Scilab%20software&component=Documentation%20pages" class="ulink">Report an issue</a></td></tr> +<tr> + <td width="30%"> + <span class="previous"><a href="gmonopuls.html"><< gmonopuls</a></span> + + </td> + <td width="40%" class="center"> + <span class="top"><a href="section_be19baaac84b122b8ad501d34462f5bf.html">FOSSEE Signal Processing Toolbox</a></span> + + </td> + <td width="30%" class="next"> + <span class="next"><a href="grpdelay.html">grpdelay >></a></span> + + </td> + </tr></table> + <hr /> + </div> + </body> +</html> |