Magnitude and phase response of IIR filter from given transfer function

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Mohsen Salimy
Mohsen Salimy 2019-12-25
回答： Maadhav Akula 2019-12-30
I am trying to work to obtain a figure from the following transfer function below:
%numerator coefficients
b0 = 0.05634;
b1 = [1 1];
b2 = [1 -1.0166 1];
%denominator coefficients
a1 = [1 -0.683];
a2 = [1 -1.4461 0.7957];
Please help obtain this code as im getting stuck using differenatied between fir and iir filters formula on matlab code

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回答（1 个）

Maadhav Akula
Maadhav Akula 2019-12-30
I think you are looking for the freqz function which gives the Magnitude and Phase response of a filter.
Following links might be helpful:
https://in.mathworks.com/help/signal/ref/freqz.html
https://in.mathworks.com/help/signal/ug/frequency-response.html#bu5yriy
Hope this helps!

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