Re: [Discuss-gnuradio] Large FFTs

[Thomas Hobiger]

Hi,


> > Your reply is related to running the FFT on the CPU, right? Do you have any
> > experience running it on the FPGA of the USRP1 or USRP2?
> >      
> No, but I know that radio astronomers do this.
>
> I have done FFT with CUDA. As long as you can keep the data inside the
> GPU for long enough, you can get pretty nice performance.
We have done our prior developments with the GPU

http://www.springerlink.com/content/j17244nu708381n6/

But since we were looking for a cheaper front-end solution, we stumbled 
over GNU radio.
If there would be a way to do the FFT on the FPGA (for the signal) and 
do the rest on the GPU we should be able to speed up things.

Anyway,  thanks.

Thomas



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Dr. Thomas Hobiger
Space-Time Measurement Project
Space-Time Standards Group
New Generation Network Research Center
National Institute of Information and Communications Technology
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