License Header change: Removed the LICENSE_END before beta
[scilab.git] / scilab / modules / cacsd / help / ja_JP / freq.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <!--
3  * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
4  * Copyright (C) INRIA - 
5  * 
6  * Copyright (C) 2012 - 2016 - Scilab Enterprises
7  *
8  * This file is hereby licensed under the terms of the GNU GPL v2.0,
9  * pursuant to article 5.3.4 of the CeCILL v.2.1.
10  * This file was originally licensed under the terms of the CeCILL v2.1,
11  * and continues to be available under such terms.
12  * For more information, see the COPYING file which you should have received
13  * along with this program.
14  *
15  -->
16 <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="freq">
17     <refnamediv>
18         <refname>freq</refname>
19         <refpurpose>周波数応答</refpurpose>
20     </refnamediv>
21     <refsynopsisdiv>
22         <title>呼び出し手順</title>
23         <synopsis>[x]=freq(A,B,C [,D],f)
24             [x]=freq(NUM,DEN,f)
25         </synopsis>
26     </refsynopsisdiv>
27     <refsection>
28         <title>パラメータ</title>
29         <variablelist>
30             <varlistentry>
31                 <term>A, B, C, D</term>
32                 <listitem>
33                     <para>
34                         適当な次元<literal>nxn, nxp, mxn, mxp</literal>の実数行列 .
35                     </para>
36                 </listitem>
37             </varlistentry>
38             <varlistentry>
39                 <term>NUM,DEN</term>
40                 <listitem>
41                     <para>
42                         次元 <literal>mxp</literal>の多項式行列
43                     </para>
44                 </listitem>
45             </varlistentry>
46             <varlistentry>
47                 <term>x</term>
48                 <listitem>
49                     <para>実数または複素数の行列</para>
50                 </listitem>
51             </varlistentry>
52         </variablelist>
53     </refsection>
54     <refsection>
55         <title>説明</title>
56         <para>
57             <literal>x=freq(A,B,C [,D],f)</literal> は次の関係を満たす実数または複素数の
58             <literal>mxp*t</literal> 行列を返します.:
59         </para>
60         <para>
61             <literal>x(:,k*p:(k+1)*p)= C*inv(f(k)*eye()-A)*B + D</literal>.
62         </para>
63         <para>
64             ここで, <literal>f</literal> が虚軸上または単位円上に
65             値を有する場合,
66             <literal>x</literal>は連続系または離散系における
67             <literal>(A,B,C,D)</literal>の周波数応答となります.
68         </para>
69         <para>
70             <literal>x=freq(NUM,DEN,f)</literal> は,
71             <literal>x</literal> の <literal>k*(p-1)+1</literal>列から
72             <literal>k*p</literal>列が行列<literal>NUM(f(k))./DEN(f(k))</literal>を
73             含むような
74             実数または複素数の
75             行列<literal>x</literal>を返します.
76         </para>
77     </refsection>
78     <refsection>
79         <title>例</title>
80         <programlisting role="example"><![CDATA[ 
81 s=poly(0,'s');
82 sys=(s+1)/(s^3-5*s+4)
83 rep=freq(sys("num"),sys("den"),[0,0.9,1.1,2,3,10,20])
84 [horner(sys,0),horner(sys,20)]
85 //
86 Sys=tf2ss(sys);
87 [A,B,C,D]=abcd(Sys);
88 freq(A,B,C,[0,0.9,1.1,2,3,10,20])
89  ]]></programlisting>
90     </refsection>
91     <refsection>
92         <title>説明</title>
93         <simplelist type="inline">
94             <member>
95                 <link linkend="repfreq">repfreq</link>
96             </member>
97             <member>
98                 <link linkend="horner">horner</link>
99             </member>
100         </simplelist>
101     </refsection>
102 </refentry>