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diff --git a/help/en_US/scilab_en_US_help/cheby1.html b/help/en_US/scilab_en_US_help/cheby1.html new file mode 100644 index 0000000..0768157 --- /dev/null +++ b/help/en_US/scilab_en_US_help/cheby1.html @@ -0,0 +1,95 @@ +<html><head> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> + <title>cheby1</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="chebwin.html"><< chebwin</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="cheby2.html">cheby2 >></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> > cheby1</span> + + <br /><br /> + <div class="refnamediv"><h1 class="refname">cheby1</h1> + <p class="refpurpose">This function generates a Chebyshev type I filter with rp dB of passband ripple.</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">cheby1</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">rp</span><span class="default">, </span><span class="default">w</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">cheby1</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">rp</span><span class="default">, </span><span class="default">w</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">cheby1</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">rp</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">cheby1</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">rp</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">cheby1</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">cheby1</span><span class="default"> (…)</span> +<span class="default">[…] = </span><span class="functionid">cheby1</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 I filter with rp dB of passband ripple. +The fourth parameter takes in high or low, default value is low. The cutoff is pi*Wc radians. +[b, a] = cheby1(n, Rp, [Wl, Wh]) indicates a band pass filter with edges pi*Wl and pi*Wh radians. +[b, a] = cheby1(n, Rp, [Wl, Wh], ’stop’) indicates a band reject filter with edges pi*Wl and pi*Wh radians. +[z, p, g] = cheby1(...) returns filter as zero-pole-gain rather than coefficients of the numerator and denominator polynomials. +[...] = cheby1(...,’s’) returns a Laplace space filter, w can be larger than 1. +[a,b,c,d] = cheby1(...) 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">cheby1</span><span class="scilabopenclose">(</span><span class="scilabnumber">2</span><span class="scilabdefault">,</span><span class="scilabnumber">6</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="scilabnumber">1</span> <span class="scilabnumber">1</span> +<span class="scilabid">b</span> <span class="scilaboperator">=</span> +<span class="scilaboperator">-</span><span class="scilabnumber">0.62915</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.55372</span><span class="scilabid">i</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.62915</span> <span class="scilaboperator">-</span> <span class="scilabnumber">0.55372</span><span class="scilabid">i</span> +<span class="scilabid">c</span> <span class="scilaboperator">=</span> <span class="scilabnumber">0.055649</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="chebwin.html"><< chebwin</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="cheby2.html">cheby2 >></a></span> + + </td> + </tr></table> + <hr /> + </div> + </body> +</html> |