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diff --git a/help/en_US/scilab_en_US_help/fftfilt.html b/help/en_US/scilab_en_US_help/fftfilt.html new file mode 100644 index 0000000..6f1a77b --- /dev/null +++ b/help/en_US/scilab_en_US_help/fftfilt.html @@ -0,0 +1,90 @@ +<html><head> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> + <title>fftfilt</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="falltime.html"><< falltime</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="filternorm.html">filternorm >></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> > fftfilt</span> + + <br /><br /> + <div class="refnamediv"><h1 class="refname">fftfilt</h1> + <p class="refpurpose">Performs FFT-based FIR filtering using overlap-add method</p></div> + + +<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3> + <div class="synopsis"><pre></pre></div></div> + +<div class="refsection"><h3 class="title">Parameters</h3> + <dl><dt><span class="term">x:</span> + <dd><p class="para">real|complex numbers - vector|matrix</p></dd></dt> + <dt><span class="term">b:</span> + <dd><p class="para">real|complex numbers - vector|matrix</p></dd></dt> + <dt><span class="term">n:</span> + <dd><p class="para">positive integer</p></dd></dt></dl></div> + +<div class="refsection"><h3 class="title">Description</h3> + <p class="para">y = fftfilt(b,x) filters the data in vector x with the filter described +by coefficient vector b. +y = fftfilt(b,x,n) uses n to determine the length of the FFT.</p> + <p class="para"></p></div> + +<div class="refsection"><h3 class="title">Examples</h3> + <div class="programlisting"><table border="0" width="100%"><tr><td width="98%"><pre class="scilabcode"><span class="scilabnumber">1</span><span class="scilabopenclose">)</span> <span class="scilabid">Filtering</span> <span class="scilabid">a</span> <span class="scilabid">sine</span> <span class="scilabid">wave</span> +<span class="scilabid">x</span> <span class="scilaboperator">=</span> <a class="scilabcommand" href="scilab://sin">sin</a><span class="scilabopenclose">(</span><span class="scilabnumber">1</span><span class="scilabspecial">:</span><span class="scilabnumber">2000</span><span class="scilabopenclose">)</span><span class="scilabdefault">;</span> +<span class="scilabid">b</span> <span class="scilaboperator">=</span> <span class="scilabopenclose">[</span><span class="scilabnumber">1</span> <span class="scilabnumber">1</span><span class="scilaboperator">/</span><span class="scilabnumber">2</span><span class="scilabopenclose">]</span><span class="scilabdefault">;</span> +<span class="scilabid">y</span> <span class="scilaboperator">=</span> <span class="scilabid">fftfilt</span><span class="scilabopenclose">(</span><span class="scilabid">b</span><span class="scilabdefault">,</span><span class="scilabid">x</span><span class="scilabopenclose">)</span><span class="scilabdefault">;</span> +<span class="scilabnumber">2</span><span class="scilabopenclose">)</span> <span class="scilabid">Multiple</span> <span class="scilabid">filters</span> <span class="scilabopenclose">(</span><span class="scilabnumber">1</span><span class="scilabdefault">,</span><span class="scilabnumber">1</span><span class="scilaboperator">/</span><span class="scilabnumber">3</span><span class="scilabopenclose">)</span> <a class="scilabcommand" href="scilab://and">and</a> <span class="scilabopenclose">(</span><span class="scilabnumber">1</span><span class="scilaboperator">/</span><span class="scilabnumber">4</span><span class="scilabdefault">,</span><span class="scilabnumber">1</span><span class="scilaboperator">/</span><span class="scilabnumber">5</span><span class="scilabopenclose">)</span><span class="scilabdefault">;</span> +<span class="scilabid">x</span> <span class="scilaboperator">=</span> <a class="scilabcommand" href="scilab://sin">sin</a><span class="scilabopenclose">(</span><span class="scilabnumber">1</span><span class="scilabspecial">:</span><span class="scilabnumber">2000</span><span class="scilabopenclose">)</span><span class="scilabdefault">;</span> +<span class="scilabid">b</span> <span class="scilaboperator">=</span> <span class="scilabopenclose">[</span><span class="scilabnumber">1</span> <span class="scilabnumber">1</span><span class="scilaboperator">/</span><span class="scilabnumber">4</span><span class="scilabdefault">;</span><span class="scilabnumber">1</span><span class="scilaboperator">/</span><span class="scilabnumber">3</span> <span class="scilabnumber">1</span><span class="scilaboperator">/</span><span class="scilabnumber">5</span><span class="scilabopenclose">]</span><span class="scilabdefault">;</span> +<span class="scilabid">y</span> <span class="scilaboperator">=</span> <span class="scilabid">fftfilt</span><span class="scilabopenclose">(</span><span class="scilabid">b</span><span class="scilabdefault">,</span><span class="scilabid">x</span><span class="scilabopenclose">)</span><span class="scilabdefault">;</span></pre></td><td valign="top"><a href="scilab://scilab.execexample/"><img src="ScilabExecute.png" border="0"/></a></td><td valign="top"><a href="scilab://scilab.editexample/"><img src="ScilabEdit.png" border="0"/></a></td><td></td></tr></table></div></div> + +<div class="refsection"><h3 class="title">Authors</h3> + <ul class="itemizedlist"><li class="member">Ayush Baid</li></ul></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="falltime.html"><< falltime</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="filternorm.html">filternorm >></a></span> + + </td> + </tr></table> + <hr /> + </div> + </body> +</html> |