|
From: | Thomas Hobiger |
Subject: | Re: [Discuss-gnuradio] Large FFTs |
Date: | Wed, 25 Aug 2010 08:57:56 +0900 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.11) Gecko/20100720 Fedora/3.0.6-1.fc12 Lightning/1.0b2pre Mnenhy/0.8.3 Thunderbird/3.0.6 |
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 -- ****************************************************************** Dr. Thomas Hobiger Space-Time Measurement Project Space-Time Standards Group New Generation Network Research Center National Institute of Information and Communications Technology ------------------------------------------------------------------ 4-2-1 Nukui-Kitamachi, Koganei 184-8795 Tokyo Japan ------------------------------------------------------------------ email: address@hidden phone: ++81-042-327-7561 fax: ++81-042-327-6664 ------------------------------------------------------------------ homepage (priv.): http://www.hobiger.org ******************************************************************
[Prev in Thread] | Current Thread | [Next in Thread] |