On Sun, Mar 7, 2010 at 21:17, Madan <ma...@mymowireless.com> wrote: > 1) Is this synchronization error between TWO RF's.
Yes. > 2)Do i have to synchronize the two USRP2's with a master clock using GPS > receiver ? If you wish to transmit and receive using two USRP2s, without making the effort to engineer carrier and timing recovery, then yes, they will both need to be driven from the same external reference. > (because in the benchmark_tx.py and benchmark_rx.py ....certain > algorithms are being used for CLOCK Recovery ( Muller & Muller), and i am > not in favour of using these programs being a overhead to my programs which > are processing OFDM I&Q samples. The recovery techniques used in the digital examples are appropriate to the type of modulation they are using. For OFDM, there are other techniques, such as sending pilot tones and training symbols. > 3) Can you please suggest me are there any better ways to for me SEND and > RECIEVE I&Q samples properly.? It sounds like you do not have a clear concept of your communications requirements. Only by analyzing what you need to accomplish and the channel over which you are transmitting can you engineer the correct solution. Johnathan _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
