chapter7_1.m

《MATLAB在控制系统中的应用》实例程序

KK=1200; bp=0.25; ts=0.7; delta=0.02; 
ng0=[1]; dg0=conv([1,0],conv([1,5],[1,20])); 
g0=tf(KK*ng0,dg0); 
s=bpts2s(bp,ts,delta) 
[ngc,dgc]=lead1(KK*ng0,dg0,s); 
gc=tf(ngc,dgc); zpk(gc), g0c=tf(g0*gc); 
b1=feedback(g0,1); b2=feedback(g0c,1); 
step(b1,'r--'), hold on 
step(b2), hold off 
axis([0,1.2,0,1.8]); 
[pos,tr,ts,tp]=stepchar(b2,delta)