how can I determine amplitude, phase and frequecy in FFT?

3 vues (au cours des 30 derniers jours)
AS
AS le 24 Mar 2019
Modifié(e) : KALYAN ACHARJYA le 24 Mar 2019
The signal I have attached like this. If I give the L value is equal to length of time, the value is 1501. But frequency matrix is coming 1 by 751. So for this plotting issue is coming. Phase part i am unable to do.
So, what will be the correct code for frequeency, amplitude and phase?
I have tried to do it with this code
Time= 0:2:3000;
tt=time;
ss=signal;
Ts = mean(diff(tt)); % sampling time
Fs=500; %sampling frequency
Fn=Fs/2;
L=length(tt);
Y=fft(ss);
P_amp=abs(Y/L);
f=Fs*(0:(L/2))/L;

Connectez-vous pour répondre à cette question.

Réponses (0)

Catégories

En savoir plus sur Spectral Measurements dans Help Center et File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!

Translated by