power spectrum VS amplitude of FFT function

2 visualizzazioni (ultimi 30 giorni)
Bob GH
Bob GH il 1 Giu 2013
Hi. what is the different between power spectrum and amplitude in FFT function?
if there is, how to calculate each one?

Accedi per rispondere a questa domanda.

Risposte (1)

Craig Cowled
Craig Cowled il 1 Giu 2013
Power = 20 * log10(abs(FFT))
  1 Commento
Bob GH
Bob GH il 1 Giu 2013
Thanks Craig. You mean if I apply fft from input and take abs from result, it gives amplitude. Is it correct?

Accedi per commentare.

Categorie

Scopri di più su Fourier Analysis and Filtering in Help Center e File Exchange

Tag

Community Treasure Hunt

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

Start Hunting!

Translated by