<?xml version="1.0" encoding="UTF-8"?>
<!--
 * Scilab ( https://www.scilab.org/ ) - This file is part of Scilab
 * Copyright (C) INRIA -
 *
 * Copyright (C) 2012 - 2016 - Scilab Enterprises
 *
 * This file is hereby licensed under the terms of the GNU GPL v2.0,
 * pursuant to article 5.3.4 of the CeCILL v.2.1.
 * This file was originally licensed under the terms of the CeCILL v2.1,
 * and continues to be available under such terms.
 * For more information, see the COPYING file which you should have received
 * along with this program.
 *
 -->
<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" xmlns:scilab="http://www.scilab.org" xml:lang="ja" xml:id="cls2dls">
    <refnamediv>
        <refname>cls2dls</refname>
        <refpurpose>双線形変換</refpurpose>
    </refnamediv>
    <refsynopsisdiv>
        <title>呼び出し手順</title>
        <synopsis>[sl1]=cls2dls(sl,T [,fp])</synopsis>
    </refsynopsisdiv>
    <refsection>
        <title>引数</title>
        <variablelist>
            <varlistentry>
                <term>sl,sl1</term>
                <listitem>
                    <para>
                        線形システム (<literal>syslin</literal> リスト)
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>T</term>
                <listitem>
                    <para>実数, サンプリング周期</para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>fp</term>
                <listitem>
                    <para>プリワープ周波数 (単位: Hz) </para>
                </listitem>
            </varlistentry>
        </variablelist>
    </refsection>
    <refsection>
        <title>説明</title>
        <para>
            <literal>sl=[A,B,C,D]</literal> (<literal>syslin</literal> リスト),
            連続時間システム
            <literal>cls2dls</literal> は双線形変換<literal>s=(2/T)*(z-1)/(z+1)</literal>
            により得られたサンプル値システムを返します.
        </para>
    </refsection>
    <refsection>
        <title>例</title>
        <programlisting role="example"><![CDATA[
s=poly(0,'s');z=poly(0,'z');
sl=syslin('c',(s+1)/(s^2-5*s+2));  //連続時間系伝達関数表現
slss=tf2ss(sl);  //状態空間表現に変換
sl1=cls2dls(slss,0.2);  //sl1= cls2dlsの出力
sl1t=ss2tf(sl1) // 伝達関数表現に変換
sl2=horner(sl,(2/0.2)*(z-1)/(z+1))   //sl2 と sl1を比較
 ]]></programlisting>
    </refsection>
    <refsection role="see also">
        <title>参照</title>
        <simplelist type="inline">
            <member>
                <link linkend="horner">horner</link>
            </member>
        </simplelist>
    </refsection>
</refentry>
