OFDM PSD

hi all, i'm trying to plot ofdm normalized (dBr) psd after ifft function.
i.e:
carriers=NFFT.*ifft(tx);
%plot normalized PSD

i've tried pwelch(), psd() and their varients but my results do not match the theory.

i'll appreciate some help on the subject.

thanks. Start a New Thread

Are you plotting the psd with the time domain samples???

Thanks and Regards,

Amit Shaw

From: m... [mailto:m...] On Behalf
Of d...@gmail.com
Sent: Tuesday, October 23, 2007 5:46 PM
To: m...
Subject: [matlab] OFDM PSD

hi all, i'm trying to plot ofdm normalized (dBr) psd after ifft
function.
i.e:
carriers=NFFT.*ifft(tx);
%plot normalized PSD

i've tried pwelch(), psd() and their varients but my results do not
match the theory.

i'll appreciate some help on the subject.

thanks. Start a New Thread