sampling frequency offset in ofdm

EDAboard.com Forum Index -> Digital Signal Processing -> sampling frequency offset in ofdm

Author

Message

shameem

Joined: 27 Oct 2005
Posts: 139
Helped: 2

12 May 2006 8:45 ofdm sampling offset

hi everybidy,
i have simulated a code in matlab for the demodulation of ofdm signal (dab). In the synchronisation process, i found the clock offset of 13.035 khz in the spectrum after downconversion. i used a nco to remove the frequency offset. Now when i differentially decode the symbols, i get 5th and 6th symbols corrupted. I think this can be happen due to sampling freq. offset. But i do not know how to compensate the clock freq. offset.
If anybody have any idea about this problem, please help me.