Let's say, for the sake of interesting discussion, that I have access to a beastly multi-CPU 'puter, perhaps based on the latest Xeon 7460 series CPUs, and a quad-socket server, giving me 24 CPUs, and 48 threads.
I'm interested in wideband, high-sensitivity, high-resolution spectroscopy. I envisage a scheme where one thread gathers an FFT-frame worth of data (let's say from an USRP2), and doles it out to one of a number of other threads that are doing FFTs on these frames of data. All the outputs of the FFT threads are averaged together to produce a result that is then time averaged. The existing FFT display schemes in Gnu Radio use a "keep-one-in-n" scheme for the FFTs, which means that sensitivity is necessarily lost, due to the spectrum being under-sampled in the time domain. Is there existing plumbing to be able to try this sort of thing? [On a smaller scale--I don't actually have such a monster server at my disposal at the moment!!]. -- Marcus Leech Principal Investigator, Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
