Frequency and Phase response of an IIR system whose system function is given H(z)

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My system function is of the form below,
I want to plot its magnitude and phase response. w should be between -pi and pi. How can I plot?

回答(1 个)

Paul Hoffrichter
Paul Hoffrichter 2020-12-16
编辑:Paul Hoffrichter 2020-12-16
Here is an example to plot the magnitude and phase frequency response
>> b = [0.0563 -0.0009 -0.0009 0.0563];
>> a = [1.0000 -2.1291 1.7834 -0.5435];
>> freqz(b,a)

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