自控matlab编程

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1、num=[0,0,0,192];den=[1,16,64,192];sys=tf(num,den);t=0:0.0005:20;[y,t]=step(sys,t);r1=1;whiley(r1)<1.00001;r1=r1+1;end;rise_time=(r1-1)*0.0005[ymax,tp]=max(y);peak_time=(tp-1)*0.0005max_overshoot=ymax-1s=20/0.0005;whiley(s)>0.98&y(s)<1.02;s=s-1;end;settle_time=(s-1)*0.0005t1=0:0

2、.01:20;r1=t1;y1=lsim(sys,r1,t1);r2=0.5.*t1.*t1;y2=lsim(sys,r2,t1);r3=sin(t1);y3=lsim(sys,r3,t1);n=[1:20/0.01+1];r4=([n>=0]-[(n-20/0.01-1)>=0]);y4=lsim(sys,r4,t1);flag=0;[z,p,k]=tf2zp(num,den);disp('ϵͳµÄ¼«µãΪ')pn=length(p);fori=1:n;ifreal(p(i)>0)flag=1;endendif(flag)fprintf('

3、ϵͳ²»Îȶ¨')elsefprintf('ϵͳÎȶ¨')endsubplot(2,2,1)plot(t1,y1,'-')subplot(2,2,2)plot(t1,y2,'-')subplot(2,2,3)plot(t1,y3,'-')subplot(2,2,4)plot(t1,y4,'-')