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<?xml version="1.0" encoding="UTF-8"?>
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* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
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* Copyright (C) INRIA -
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* This file must be used under the terms of the CeCILL.
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* This source file is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at
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* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
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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="dbphi">
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<refname>dbphi</refname>
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<refpurpose>位相および振幅表現の周波数応答</refpurpose>
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<synopsis>[db,phi] =dbphi(repf)</synopsis>
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<para>ゲイン (db) および位相 (度)のベクトル</para>
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<para>複素周波数応答のベクトル</para>
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<literal>db(k)</literal> は <literal>repf(k)</literal> の振幅(単位: dB),
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すなわち <literal>db(k)=20*log(abs(repf(k)))/log(10)</literal> です.
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<literal>phi(k)</literal> は<literal>repf(k)</literal>の位相 (単位:度)です.
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<refsection role="see also">
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<simplelist type="inline">
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<link linkend="repfreq">repfreq</link>
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<link linkend="bode">bode</link>