Magnitude and phase response of IIR filter from given transfer function

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Mohsen Salimy 2019-12-25

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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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Maadhav Akula 2019-12-30

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https://ww2.mathworks.cn/matlabcentral/answers/497995-magnitude-and-phase-response-of-iir-filter-from-given-transfer-function#answer_408151

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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