help with FiltFilt and entering coeff
2 views (last 30 days)
Show older comments
Is there a video on how to enter filter coeff, I have these calculated but not sure how I enter them. I have calculated my Xabs but don't know how to to filter the signal using:
a(1)*y(n) = b(1)*x(n) + b(2)*x(n-1) + ... + b(nb+1)*x(n-nb) - a(2)*y(n-1) - ... - a(na+1)*y(n-na) a(1)*y(n) = b(1)*x(n) + b(2)*x(n-1) + ... + b(nb+1)*x(n-nb)
I don't want to use toolbox.
Thanks
0 Comments
Answers (1)
Abhishek Ballaney
on 6 Apr 2018
https://in.mathworks.com/help/signal/ref/filtfilt.html
2 Comments
Osman Atay Öztürk
on 10 Sep 2021
change the order of filter probably you used first order butterworth filter thats why you have 2 terms in A and B.
[b,a] = butter(N,Wn,'high');
Change N for changing order of butter filter.
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!