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<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
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<!DOCTYPE MAN SYSTEM "../../manrev.dtd">
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<LANGUAGE>eng</LANGUAGE>
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<TYPE>Scilab Function</TYPE>
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<DATE>April 1993</DATE>
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<SHORT_DESCRIPTION name="ccontrg"> central H-infinity controller</SHORT_DESCRIPTION>
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<CALLING_SEQUENCE_ITEM>[K]=ccontrg(P,r,gamma); </CALLING_SEQUENCE_ITEM>
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<PARAM_NAME>P</PARAM_NAME>
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<SP>: <VERB>syslin</VERB> list (linear system in state-space representation)</SP>
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<PARAM_NAME>r</PARAM_NAME>
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<SP>: 1x2 row vector, dimension of the 2,2 part of <VERB>P</VERB></SP>
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<PARAM_NAME>gamma</PARAM_NAME>
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<SP>: real number</SP>
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returns a realization <VERB>K</VERB> of the central controller for the
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general standard problem in state-space form.</P>
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Note that gamma must be > gopt (ouput of <VERB>gamitg</VERB>)</P>
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P contains the parameters of plant realization <VERB>(A,B,C,D)</VERB>
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(<VERB>syslin</VERB> list) with</P>
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B = ( B1 , B2 ) , C= ( C1 ) , D = ( D11 D12)
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<P><VERB>r(1)</VERB> and <VERB>r(2)</VERB> are the dimensions of <VERB>D22</VERB> (rows x columns)</P>
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<AUTHOR>P. Gahinet (INRIA); </AUTHOR>