How to calculate group delay and compensate it by zero padding?

3 views (last 30 days)
The filtered signal has a time shift. How can ı measure the group delay of the filter?
fs = 5000;
tiv=1/fs;
t = 0:tiv:0.05;
t1=2*pi*100*t;
t2=2*pi*500*t;
x = sin(t1)+0.7*cos(t2);
xn = x + 5.*randn(size(t));
d = designfilt('lowpassfir', 'PassbandFrequency', 500, ...
'StopbandFrequency', 600, ...
'PassbandRipple', 1, 'StopbandAttenuation', 100, ...
'SampleRate', fs);
y=filter(d,xn);
subplot(2,1,1);
plot(x); hold on; plot(y);

Answers (0)

Categories

Find more on Get Started with Signal Processing Toolbox in Help Center and File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!

Translated by