Instead of using the threshold to select coefficients in the Fourier domain, you could also use a low-pass filter. can some one explain which would be better?
3 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Instead of using the threshold to select coefficients in the Fourier domain, you could also use a low-pass filter. can some one explain which would be better?
0 commentaires
Réponse acceptée
Wayne King
le 6 Déc 2013
I think using a lowpass filter is better in most cases than just zeroing out coefficients in the Fourier transform.
A lowpass filter gives you a better attenuation profile by multiplying the signal's Fourier transform with the Fourier transform of the filter (convolution in time).
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Filter Analysis dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!