Add parameters in transfer function

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John Blacksad
John Blacksad 2020-4-8
回答： Star Strider 2020-4-8
Hello, I need a transfer function like this: 1/(k_s*s^2+1)
But I get an error message and then I can't solve the feedback. How can I do it?
Thank you in advance.
  1 个评论
Ameer Hamza
Ameer Hamza 2020-4-8
In MATLAB, the transfer function cannot have variable coefficients. Can you explain what are you trying to do?

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回答（1 个）

Star Strider
Star Strider 2020-4-8
The ‘H’ transfer function and the feedback output function can be anonymous functions:
G = tf(1, [2 0 1])
H = @(k_s) tf(1, [k_s 0 1])
GH = @(k_s) feedback(G,H(k_s))
ks = 0.25;
step(GH(ks))
That runs without error in R2020a.

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