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    <span class="path"><a href="index.html">FOSSEE Signal Processing Toolbox</a> &gt;&gt; <a href="section_e54aa8aac34aa55341e8b4b782fe1a74.html">FOSSEE Signal Processing Toolbox</a> &gt; remez1</span>

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    <div class="refnamediv"><h1 class="refname">remez1</h1>
    <p class="refpurpose">Parks-McClellan optimal FIR filter design</p></div>


<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3>
   <div class="synopsis"><pre><span class="default">b</span><span class="default"> = </span><span class="functionid">remez1</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">f</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">remez1</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">f</span><span class="default">, </span><span class="default">a</span><span class="default">, </span><span class="default">w</span><span class="default">)</span>
<span class="default">b</span><span class="default"> = </span><span class="functionid">remez1</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">f</span><span class="default">, </span><span class="default">a</span><span class="default">, </span><span class="default">w</span><span class="default">, </span><span class="default">ftype</span><span class="default">)</span>
<span class="default">b</span><span class="default"> = </span><span class="functionid">remez1</span><span class="default"> (</span><span class="default">n</span><span class="default">, </span><span class="default">f</span><span class="default">, </span><span class="default">a</span><span class="default">, </span><span class="default">w</span><span class="default">, </span><span class="default">ftype</span><span class="default">, </span><span class="default">griddensity</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">gives the number of taps in the returned filter</p></dd></dt>
   <dt><span class="term">f:</span>
      <dd><p class="para">gives frequency at the band edges [b1 e1 b2 e2 b3 e3 …]</p></dd></dt>
   <dt><span class="term">a:</span>
      <dd><p class="para">gives amplitude at the band edges [a(b1) a(e1) a(b2) a(e2) …]</p></dd></dt>
   <dt><span class="term">w:</span>
      <dd><p class="para">gives weighting applied to each band</p></dd></dt>
   <dt><span class="term">ftype:</span>
      <dd><p class="para">is &#0034;bandpass&#0034;, &#0034;hilbert&#0034; or &#0034;differentiator&#0034;</p></dd></dt>
   <dt><span class="term">griddensity:</span>
      <dd><p class="para">determines how accurately the filter will be constructed. The minimum value is 16, but higher numbers are slower to compute.</p></dd></dt></dl></div>

<div class="refsection"><h3 class="title">Description</h3>
   <p class="para">Frequency is in the range (0, 1), with 1 being the Nyquist frequency.</p></div>
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