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ÀûÓÃmatlabÖÐYalmip¹¤¾ßÏä±àµÄ³ÌÐòÈçÏ£º %%%%%%%%%%%%%%%%%% d=57; A=[0.8 0;0 0.91]; Ad=[-0.1 0;-0.1 -0.1]; n=size(A,1); for i=1:3 e{i}=[]; for j=1:3 if j==i e{i}=[e{i} eye(n)]; else e{i}=[e{i} zeros(n)]; end end end f1=A*e{1}+Ad*e{2}; f2=f1-e{1}; f3=[e{1};(d+1)*e{3}-e{1}]; f4=[f1;(d+1)*e{3}-e{2}]; P1=sdpvar(2*n,2*n,'symmetric'); P2=sdpvar(n,n,'symmetric'); P3=sdpvar(n,n,'symmetric'); % N1=sdpvar(n,3*n); % N2=sdpvar(n,3*n); N1=1/d*[P2 -P2 zeros(n,n)]; N2=3/(d*(d+1))*[-P2 -P2 2*P2]; Delta=f4'*P1*f4-f3'*P1*f3+f2'*P2*f2-2/d*(e{1}'-e{2}')*N1+(2*d+2)/d*(e{1}'+e{2}'-2*e{3}')*N2+e{1}'*P3*e{1}-e{2}'*P3*e{2}; FAI=[Delta N1' (d+1)/sqrt(3)*N2';N1 -P2 zeros(n,n);(d+1)/sqrt(3)*N2 zeros(n,n) -P2]; con=[]; con1=[P1>=0]; con2=[P2>=0]; con3=[P3>=0]; con4=[FAI<=0]; con=[con,con1,con2, con3,con4]; sol=solvesdp(con,[],sdpsettings('solver','lmilab')) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% ´ËʱÄÜÕÒµ½¿ÉÐн⣬Èç¹ûÎÒ°Ñ N1=1/d*[P2 -P2 zeros(n,n)]; N2=3/(d*(d+1))*[-P2 -P2 2*P2]; ÕâÁ½ÐгÌÐò»»³ÉÈçϳÌÐò N1=sdpvar(n,3*n); N2=sdpvar(n,3*n); Ôò²»ÄÜÕÒµ½¿ÉÐнâÁË¡£°´Àí˵£¬µÚ¶þÖÖÇé¿ö¾ßÓиüÉÙ±£ÊØÐÔ£¬ÒòΪ´ËʱN1ºÍN2¶¼ÊÇ×ÔÓɱäÁ¿¡£µÚÒ»ÖÖÇé¿öÊǵڶþÖÖµÄÌØÊâÇéÐΣ¬ÎªÉ¶»»ÁËÁ½ÐгÌÐò£¬¾ÍÕÒ²»µ½¿ÉÐнâÁË£¿ÊµÔÚû¸ãÃ÷°× |
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huangmagudi
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