Marcus Leech wrote: > Jeffrey Karrels wrote: >> >> I am looking for some design suggestions for a multi-carrier >> transmitter with one daughterboard. I took a look at the hardware and >> software yesterday. From my understanding it looks like I would have >> to write a DUC in the FPGA that would mix and combine my multiple >> channels. I actually want to transmit the same data on all channels... >> Anyways, I was wondering if anyone has looked into this or if there >> has been any work in this area? >> > If all your carriers are within the bandwidth of a USRP transmit stream, > then you simply generate your signals, > combine them mathematically in the host, then send the composite > signal to the USRP to transmit. > > Assuming that the host host has enough computrons to compute the > required math for multiple carriers, it > should work just fine.
Yes. And if your carriers are evenly spaced and have enough guard band between them, there is a very computationally efficient way of using an IFFT to do this already in the software (blks.synthesis_filterbank). -- Johnathan Corgan Corgan Enterprises LLC http://corganenterprises.com _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
