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Viewing changes to modules/signal_processing/help/ja_JP/fsfirlin.xml

  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2012-08-30 14:42:38 UTC
  • mfrom: (1.4.7)
  • Revision ID: package-import@ubuntu.com-20120830144238-c1y2og7dbm7m9nig
Tags: 5.4.0-beta-3-1~exp1
* New upstream release
* Update the scirenderer dep
* Get ride of libjhdf5-java dependency

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modules/signal_processing/help/ja_JP/fsfirlin.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" version="5.0-subset Scilab" xml:lang="ja" xml:id="fsfirlin">
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  <refnamediv>
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    <refname>fsfirlin</refname>
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    <refpurpose>FIRの設計,線形位相フィルタ, 周波数標本法e</refpurpose>
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  </refnamediv>
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  <refsynopsisdiv>
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    <title>呼び出し手順</title>
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    <synopsis>[hst]=fsfirlin(hd,flag)</synopsis>
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  </refsynopsisdiv>
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  <refsection>
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    <title>パラメータ</title>
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    <variablelist>
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      <varlistentry>
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        <term>hd</term>
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        <listitem>
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          <para>指定する周波数応答標本のベクトル</para>
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        </listitem>
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      </varlistentry>
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      <varlistentry>
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        <term>flag</term>
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        <listitem>
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          <para>値は1 または 2で, 1形または2形設計を選択します</para>
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        </listitem>
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      </varlistentry>
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      <varlistentry>
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        <term>hst</term>
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        <listitem>
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          <para>
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            周波数グリッドにおける近似的な連続応答を指定するベクトル
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          </para>
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        </listitem>
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      </varlistentry>
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    </variablelist>
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  </refsection>
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  <refsection>
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    <title>説明</title>
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    <para>
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      周波数標本法による
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      FIR,線形位相フィルタの設計用関数です.
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    </para>
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  </refsection>
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  <refsection>
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    <title>例</title>
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    <programlisting role="example"><![CDATA[ 
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//
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//Example of how to use the fsfirlin macro for the design 
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//of an FIR filter by a frequency sampling technique.
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//
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//Two filters are designed : the first (response hst1) with 
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//abrupt transitions from 0 to 1 between passbands and stop 
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//bands; the second (response hst2) with one sample in each 
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//transition band (amplitude 0.5) for smoothing.
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//
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hd=[zeros(1,15) ones(1,10) zeros(1,39)];//desired samples
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hst1=fsfirlin(hd,1);//filter with no sample in the transition
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hd(15)=.5;hd(26)=.5;//samples in the transition bands
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hst2=fsfirlin(hd,1);//corresponding filter
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pas=1/prod(size(hst1))*.5;
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fg=0:pas:.5;//normalized frequencies grid
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plot2d([1 1].*.fg(1:257)',[hst1' hst2']);
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// 2nd example
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hd=[0*ones(1,15) ones(1,10) 0*ones(1,39)];//desired samples
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hst1=fsfirlin(hd,1);//filter with no sample in the transition
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hd(15)=.5;hd(26)=.5;//samples in the transition bands
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hst2=fsfirlin(hd,1);//corresponding filter
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pas=1/prod(size(hst1))*.5;
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fg=0:pas:.5;//normalized frequencies grid
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n=prod(size(hst1))
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plot(fg(1:n),hst1);
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plot2d(fg(1:n)',hst2',[3],"000");
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 ]]></programlisting>
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  </refsection>
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  <refsection role="see also">
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    <title>参照</title>
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    <simplelist type="inline">
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      <member>
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        <link linkend="ffilt">ffilt</link>
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      </member>
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      <member>
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        <link linkend="wfir">wfir</link>
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      </member>
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    </simplelist>
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  </refsection>
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</refentry>