[Discuss-gnuradio] how can I distinguish the first subcarrier in the ofdm spectrum with matlab?

[James Park]

hi,

 

I got data from benchmark_ofdm_tx.py and am looking at the data with matlab.

however, it is now easy to distinguish each subcarrier after fft.

I can see frequency spectrum but it's not clear which one is first subcarrier.

Thanks for your help.

 

James,