How do I write the scrip for this problem? The one I wrote doesn't give me the same answer. Every tutorial I watched hasn't helped.

2015 9 28
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更新时间：2015 9 28
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clear all
KK=1;clf
while (35>KK)&&(KK>0);
G=tf(1,[1 4 9 0]);
Gc=feedback(G,KK);
t=[0:1:10];
[y,t]=step(Gc,t);
plot(t,y);
hold on
KK=KK + 5;
end

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goerk
goerk 2015-9-28
编辑：goerk 2015-9-28

0 个投票

Td = A/s is already the step function.
figure;
for KK = [1 5:5:25]
Gc=tf([1 0],[1 4 9 KK]);
t=[0:0.1:10];
[y,t]=step(Gc,t);
plot(t,y);
hold on
end
or you can replace step by impulse in your code.

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