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- clc
- % MUSYNEX is a simple demo routine illustrating the
- % D-F iteration of mu-synthesis. See also MUDEMO.
-
- echo on
-
- % Plant Data:
-
- a=2; b1=[.1 -1]; b2=-1;
- c1=[1 .01]'; d11=[.1 .2;.01 .01]; d12=[1 0]';
- c2=1; d21=[0 1]; d22=3;
- tss_=mksys(a,b1,b2,c1,c2,d11,d12,d21,d22,'tss');
- w=logspace(-2,1);
-
-
- % H-infinity
-
- [gam0,ss_cp0,ss_cl0]=hinfopt(tss_);
- [mu0,logd0]=ssv(ss_cl0,w);
-
- % Mu Synthesis -- Iteration No. 1 (CONSTANT D(s)):
-
- [ss_d1,logd1]=fitd(logd0,w);
- [gam1,ss_cp1,ss_cl1]=hinfopt(augd(tss_,ss_d1));
- [mu1,deltalogd]=ssv(ss_cl1,w);
-
-
-
- % Mu Synthesis -- Iteration No. 2 (FIRST ORDER D(s)):
-
- [ss_d2,logd2]=fitd(logd1+deltalogd,w,1);
- [gam2,ss_cp2,ss_cl2]=hinfopt(augd(tss_,ss_d2));
-
- % Display Optimal hinf cost closed loop and SSV plot
-
- clg
- loglog(w,max(sigma(ss_cl2,1,w))/gam2,w,ssv(ss_cl2,w)/gam2);
- echo off
- pause