How can I improve peak detection in fast fourier tranform?
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
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 Kommentare
Antworten (1)
Miroslav Balda
am 29 Jan. 2013
You may find the function sinfapm.m in the File Exchange:
www.mathworks.com/matlabcentral/fileexchange/19902
0 Kommentare
Siehe auch
Kategorien
Mehr zu Spectral Measurements finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!