Plot transfer function with exponential function

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Mark S
Mark S 2020-12-6
评论： Mark S 2020-12-6
Hi, how can I plot this tf in Matlab:
G(s)= 4e^-s/(s^2+4s+4)
I have tried this, but I am not sure if this is ok:
sys = tf([4*exp(-1)],[1 4 4]);

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回答（2 个）

Ameer Hamza
Ameer Hamza 2020-12-6
An alternative approach:
s = tf('s');
G = 4*exp(-s)/(s^2+4*s+4);
step(G)
Setsuna Yuuki.
Setsuna Yuuki. 2020-12-6
编辑：Setsuna Yuuki. 2020-12-6
You need add inputdelay
sets=tf(4,[1 4 4],'inputdelay',1)
sets =
4
exp(-1*s) * -------------
s^2 + 4 s + 4

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