discrete transfer function block replace of contioues transfer function block

Question

Guomeng Sun 2021-9-27

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评论： Guomeng Sun 2021-9-29

hello friends,

i want to use a discrete transfer function block replace of contioues transfer function. After simulink, it did not work. can someone give me some advice. thanks.

contioues transfer function block:

discrete transfer function block:

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Answer 1

Ivo Houtzager 2021-9-28

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You can't use the same parameters of the continuous-time filter in the discrete-time filter. You will have to discretize the filter transfer function using zero-order-hold or Tustin method. You can use the c2d matlab function to perform this discretization.