How can I improve peak detection in fast fourier tranform?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hello,
I recorded a sinusoidal signal and I want to figure out the amplitude and the phase of this signal. I do know the frequency. The signal length is 4096 and I have about 5 complete cycles in it plus one uncomplete cycle. By using FFT, I cannot get the impulse peak at the exact frequency, but it is distributed onto the adiacent frequencies.
Is there any procedure/function in Matlab able to give me the amplitude and the phase at a given frequency?
Thanks a lot
0 commentaires
Réponses (1)
Miroslav Balda
le 29 Jan 2013
You may find the function sinfapm.m in the File Exchange:
www.mathworks.com/matlabcentral/fileexchange/19902
0 commentaires
Voir également
Catégories
En savoir plus sur Spectral Measurements dans Help Center et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!