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| author | bgtushar | 2017-11-30 20:31:42 +0530 |
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| committer | bgtushar | 2017-11-30 20:31:42 +0530 |
| commit | f6ef6a0238d4a028e65a0a7f1f1d39ff7979dec2 (patch) | |
| tree | 9d5f3f6632568deb6f285acebd9990f4eb02171a /help/en_US/scilab_en_US_help/cheby2.html | |
| parent | bde72bceca94ce47e8c65886878947cf3c2445cb (diff) | |
| parent | 99b498fb0cedd8560d18f032a4cb1fcae0c1fadb (diff) | |
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diff --git a/help/en_US/scilab_en_US_help/cheby2.html b/help/en_US/scilab_en_US_help/cheby2.html new file mode 100644 index 0000000..212908e --- /dev/null +++ b/help/en_US/scilab_en_US_help/cheby2.html @@ -0,0 +1,95 @@ +<html><head> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> + <title>cheby2</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="cheby1.html"><< cheby1</a></span> + + </td> + <td width="40%" class="center"> + <span class="top"><a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a></span> + + </td> + <td width="30%" class="next"> + <span class="next"><a href="check.html">check >></a></span> + + </td> + </tr></table> + <hr /> + </div> + + + + <span class="path"><a href="index.html">FOSSEE Signal Processing Toolbox</a> >> <a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a> > cheby2</span> + + <br /><br /> + <div class="refnamediv"><h1 class="refname">cheby2</h1> + <p class="refpurpose">This function generates a Chebyshev type II filter with rs dB of stopband attenuation.</p></div> + + +<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3> + <div class="synopsis"><pre><span class="default">[</span><span class="default">a</span><span class="default">, </span><span class="default">b</span><span class="default">] = </span><span class="functionid">cheby2</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">rs</span><span class="default">, </span><span class="default">wc</span><span class="default">)</span> +<span class="default">[</span><span class="default">a</span><span class="default">, </span><span class="default">b</span><span class="default">] = </span><span class="functionid">cheby2</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">rs</span><span class="default">, </span><span class="default">wc</span><span class="default">, </span>"<span class="default">high</span>"<span class="default">)</span> +<span class="default">[</span><span class="default">a</span><span class="default">, </span><span class="default">b</span><span class="default">] = </span><span class="functionid">cheby2</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">rs</span><span class="default">, [</span><span class="default">wl</span><span class="default">, </span><span class="default">wh</span><span class="default">])</span> +<span class="default">[</span><span class="default">a</span><span class="default">, </span><span class="default">b</span><span class="default">] = </span><span class="functionid">cheby2</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">rs</span><span class="default">, [</span><span class="default">wl</span><span class="default">, </span><span class="default">wh</span><span class="default">], </span>"<span class="default">stop</span>"<span class="default">)</span> +<span class="default">[</span><span class="default">a</span><span class="default">, </span><span class="default">b</span><span class="default">, </span><span class="default">c</span><span class="default">] = </span><span class="functionid">cheby2</span><span class="default"> (…)</span> +<span class="default">[</span><span class="default">a</span><span class="default">, </span><span class="default">b</span><span class="default">, </span><span class="default">c</span><span class="default">, </span><span class="default">d</span><span class="default">] = </span><span class="functionid">cheby2</span><span class="default"> (…)</span> +<span class="default">[…] = </span><span class="functionid">cheby2</span><span class="default"> (…, </span>"<span class="default">s</span>"<span class="default">)</span></pre></div></div> + +<div class="refsection"><h3 class="title">Parameters</h3> + <dl><dt><span class="term">n:</span> + <dd><p class="para">positive integer value</p></dd></dt> + <dt><span class="term">rp:</span> + <dd><p class="para">non negative scalar value</p></dd></dt> + <dt><span class="term">w:</span> + <dd><p class="para">vector, all elements must be in the range [0,1]</p></dd></dt></dl></div> + +<div class="refsection"><h3 class="title">Description</h3> + <p class="para">This is an Octave function. +This function generates a Chebyshev type II filter with rs dB of stopband attenuation. +The fourth parameter takes in high or low, default value is low. The cutoff is pi*Wc radians. +[b, a] = cheby2(n, Rp, [Wl, Wh]) indicates a band pass filter with edges pi*Wl and pi*Wh radians. +[b, a] = cheby2(n, Rp, [Wl, Wh], ’stop’) indicates a band reject filter with edges pi*Wl and pi*Wh radians. +[z, p, g] = cheby2(...) returns filter as zero-pole-gain rather than coefficients of the numerator and denominator polynomials. +[...] = cheby2(...,’s’) returns a Laplace space filter, w can be larger than 1. +[a,b,c,d] = cheby2(...) returns state-space matrices.</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="scilabopenclose">[</span><span class="scilabid">a</span><span class="scilabdefault">,</span><span class="scilabid">b</span><span class="scilabdefault">,</span><span class="scilabid">c</span><span class="scilabopenclose">]</span><span class="scilaboperator">=</span><span class="scilabid">cheby2</span><span class="scilabopenclose">(</span><span class="scilabnumber">2</span><span class="scilabdefault">,</span><span class="scilabnumber">5</span><span class="scilabdefault">,</span><span class="scilabnumber">0.7</span><span class="scilabdefault">,</span><span class="scilabstring">"</span><span class="scilabstring">high</span><span class="scilabstring">"</span><span class="scilabopenclose">)</span> +<span class="scilabid">a</span> <span class="scilaboperator">=</span> +<span class="scilaboperator">-</span><span class="scilabnumber">0.31645</span> <span class="scilaboperator">-</span> <span class="scilabnumber">0.94861</span><span class="scilabid">i</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.31645</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.94861</span><span class="scilabid">i</span> +<span class="scilabid">b</span> <span class="scilaboperator">=</span> +<span class="scilaboperator">-</span><span class="scilabnumber">0.39388</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.53138</span><span class="scilabid">i</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.39388</span> <span class="scilaboperator">-</span> <span class="scilabnumber">0.53138</span><span class="scilabid">i</span> +<span class="scilabid">c</span> <span class="scilaboperator">=</span> <span class="scilabnumber">0.47528</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> + <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="cheby1.html"><< cheby1</a></span> + + </td> + <td width="40%" class="center"> + <span class="top"><a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a></span> + + </td> + <td width="30%" class="next"> + <span class="next"><a href="check.html">check >></a></span> + + </td> + </tr></table> + <hr /> + </div> + </body> +</html> |