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su2gges2tion

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[ÇóÖú] ʹÓÃmatlabÖÐLMI¹¤¾ßÏäÇó½âÏßÐÔ¾ØÕó²»µÈʽ³ÌÐò

Çó½â¾ØÕó²»µÈʽA1'P+PA1+F'F+PEE'P-K1'B'P-PBK1<0;A1'P+PA1+F'F+PEE'P-K2'B'P-PBK2<0;A2'P+PA2+F'F+PEE'P-K1'B'P-PBK1<0;A2'P+PA2+F'F+PEE'P-K2'B'P-PBK2<0;P>0.ÆäÖÐBΪÈý½×µ¥Î»¾ØÕó£¬K1£¬K2£¬PΪËùÇóµÄδ֪¾ØÕó£¬ÎªÊ²Ã´ÎÒдµÄ³ÌÐòÇó³öµÄtminÊÇ´óÓÚÁãµÄ£¬Çó³öµÄP¾ØÕó²»ÊÇÕý¶¨µÄ£¬²¢ÇÒÇóµÃK1£¬K2¾ùÊÇÁã¾ØÕó¡£ÎҵijÌÐòÄÄÀï³ö´íÁË£¬ÇóÖ¸½Ì£¬·Ç³£¸Ðл£¡

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A1=[-1 -20 0;20 -1 20;0 5.45 -5.45];
A2=[-1 20 0;-20 -1 20;0 5.45 -5.45];
E=[0 0 0 0 0 0 0 0 0;0 0 0 0 0 1 0 0 0;0 0 0 0 0 0 0 sqrt(0.2) sqrt(0.2)];
F=[0 0 0;0 0 0;0 0 0;0 0 0;0 0 0;0 0 sqrt(1);0 0 0;0 sqrt(0.2) 0;0 0 sqrt(0.2)];
%³õʼ»¯LMI
setlmis([]);
%¶¨Òå±äÁ¿
P=lmivar(1,[3 1]);
K1=lmivar(2,[3 3]);
K2=lmivar(2,[3 3]);
%Ìí¼ÓÏî
lmiterm([1 1 1 P],1,A1,'s');
lmiterm([1 1 1 0],F'*F);
lmiterm([1 1 1 P],-1,K1);
lmiterm([1 1 1 P],-K1,-1);
lmiterm([1 1 2 P],1,E);
lmiterm([1 2 2 0],-1);

lmiterm([2 1 1 P],1,A1,'s');
lmiterm([2 1 1 0],F'*F);
lmiterm([2 1 1 P],-1,K2);
lmiterm([2 1 1 P],-K2,-1);
lmiterm([2 1 2 P],1,E);
lmiterm([2 2 2 0],-1);

lmiterm([3 1 1 P],1,A2,'s');
lmiterm([3 1 1 0],F'*F);
lmiterm([3 1 1 P],-1,K1);
lmiterm([3 1 1 P],-K1,-1);
lmiterm([3 1 2 P],1,E);
lmiterm([3 2 2 0],-1);

lmiterm([4 1 1 P],1,A2,'s');
lmiterm([4 1 1 0],F'*F);
lmiterm([4 1 1 P],-1,K2);
lmiterm([4 1 1 P],-K2,-1);
lmiterm([4 1 2 P],1,E);
lmiterm([4 2 2 0],-1);

lmiterm([-5 1 1 P],1,1);
%»ñÈ¡LMIϵͳÃèÊö
lmisys=getlmis;
[tmin,xfeas]=feasp(lmisys)%options²ÎÊý¿ÉÒÔ×Ô¼ºÉèÖã¬Ò²¿ÉÒÔĬÈÏ
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