MATLAB Answers

How to plot frequency response at discrete time?

34 ビュー (過去 30 日間)
SeokWon CHOI
SeokWon CHOI 2021 年 5 月 30 日
回答済み: Mahesh Taparia 2021 年 6 月 4 日
I want to plot a frequency response ( z-transform)
How can I plot this graph?
Before asking to you, I tried to solve it by myself with the following code, but failed.
for example) H(z) = 1 + 0.5 exp(j*pi/4) * z^-1 ( H(e^jw) = 1+0.5exp(j*(pi/4-w)) )
>> t = linspace(-pi,pi);
>> x = 1+0.5*exp(j*(pi/4-t));
>> figure(1); plot(t,real(x)); grid on;

回答 (1 件)

Mahesh Taparia
Mahesh Taparia 2021 年 6 月 4 日
Hi
You can use freqz function to plot frequency response at discrete time. You can refer this example to plot the response of your filter.
Hope it will help!

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by