DSSS Plotting

5 vues (au cours des 30 derniers jours)
Tiisetso Ntlatleng
Tiisetso Ntlatleng le 1 Mar 2011
Réponse apportée : Pritesh le 13 Mar 2024
I have a QPSK signal (amplitude samples) that I've spread using DSSS. The PSD of the DSSS spread signal should be spread in frequency and the power should go down. When I plot the frequency response of the DSSS signal, it looks spread but has not attenuated. I use the function {plot (20*log(fft(DSSS_time_domain_signal)))} to plot the DSSS frequency version of the signal. Is there something Im not considering when plotting?

Connectez-vous pour répondre à cette question.

Réponses (2)

Vieniava
Vieniava le 4 Mar 2011
Try this:
plot(20*log(abs(fft(DSSS_time_domain_signal))))
Pritesh
Pritesh le 13 Mar 2024
plot(20*log(abs(fft(DSSS_time_domain_signal))))

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