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ÔÚÉè¸ù¾Ý¹ãÒåKYPÒýÀíÉè¼Æ¹ÊÕϼì²âÂ˲¨Æ÷ʱ£¬¹ÊÕÏÁéÃô¶ÈµÄLMIÌõ¼þÊÇÒª×î´ó»¯beta£¬¿ÉÊǾØÕó²»µÈʽÀïÃæÖ»ÓÐbetaµÄƽ·½£¬ÈçºÎ²ÅÄÜת»¯Îª×îС»¯µÄÎÊÌâ¡­¡­Ê¹ÓÃmincxÇó½âÆ÷½øÐÐÇó½â¡­¡­ @mchen_6431

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%%%%%%%%%%%%%%Õâ¸öÊÇÏà¹Ø³ÌÐò £¬ÎÒ³¢ÊÔÓõÄ˼ÏëÊÇ×îС»¯¸ºbetaµÄƽ·½£¬µ«µÃ²»µ½ÕýÈ·µÄ½á¹û¡£%%%%%%%%%
clc
clear
A=[-0.3 -0.5
    4 0];
B=[2;0];
C=[0 1.25];
D=[0];
a=3
M=0.5*i*eye(1)
M1=real(M)
M2=imag(M)
bigM=[M1 M2;-M2 M1]

setlmis([])
P=lmivar(1,[2,1])
Q=lmivar(1,[2,1])
beta=lmivar(1,[1,0])%%z´Ë´¦µÄbetaÎÒÃǶ¨ÒåµÄÊÇÆäÆ½·½
% gamma=lmivar(3,[])
lmiterm([-1 1 1 Q],1,1)%¶¨ÒåQ>0
lmiterm([-2 1 1 beta],1,1)%¶¨Òåbeta>0
lmiterm([a 1 1 Q],-A',A)
lmiterm([a 1 1 P],A',1,'s')
lmiterm([a 1 1 Q],-bigM',A)%%%%%%%%%%%%%%%%%
lmiterm([a 1 1 Q],A.'*bigM,1)%%%%%%%%%%%%%%
lmiterm([a 1 1 0],-C.'*C)

lmiterm([a 1 2 Q],-A',B)
lmiterm([a 1 2 P],1,B)
lmiterm([a 1 2 Q],-bigM,B)%%%%%%%%%%%%%%%%
lmiterm([a 1 2 0],-C'*D)

lmiterm([a 2 1 Q],-B',A)
lmiterm([a 2 1 P],B',1)
lmiterm([a 2 1 Q],B'*bigM,1)%%%%%%%%%%%%%%
lmiterm([a 2 1 0],-D'*C)

lmiterm([a 2 2 Q],-B',B)
lmiterm([a 2 2 0],-D'*D)
lmiterm([a 2 2 beta],1,1)%%%%%%%%%%%%%%%%%%%%%%%

lmisys=getlmis;

m=decnbr(lmisys);
% c=mat2dec(lmisys,zeros(2),zeros(2),-eye(1))
c=zeros(m,1)
for e=1:m;
    [Pe,betae]=defcx(lmisys,e,P,beta);%            
    c(e)=-(betae)
end

[tmin,xfeas]=feasp(lmisys)
[copt,xopt]=mincx(lmisys,c)
beta=sqrt(dec2mat(lmisys,xopt,beta)) @mchen_6431
2Â¥2017-03-21 13:26:24
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3Â¥: Originally posted by AMOÇçÌì at 2017-11-06 15:37:27
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4Â¥2017-11-06 18:14:38
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