Plot the amplitude and phase response for the given FIR system.
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1-2z^-1+4z^-2
Plot the amplitude and phase response for the given FIR system.
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Walter Roberson
on 9 Feb 2023
How does this differ from https://www.mathworks.com/matlabcentral/answers/1909670-plot-fir-system-magnitude-and-phase?s_tid=srchtitle ?
Answers (2)
Sarvesh Kale
on 10 Feb 2023
To plot the frequency response of FIR system use the following code
b=[1 -2 4]; % define numerator coefficient
a=[1]; % define denominator coefficient
figure ;
freqz(b,a,2048) % plot frequency response for 2048 points
You can take a look at following documentation of freqz and phasez to get more information on them
I hope this answers your queries, please accept the answer if it does.
Thank you.
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Sulaymon Eshkabilov
on 10 Feb 2023
Use tf() and bode():
z = tf('z',0.1);
H = (4*(z^-2)-2*(z^-1)+1) /1
bode(H)
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