Hi Martin, pfb_channelizer_ccf will seperate all channels, But I dont need each channel. I only need the channel I am interested in. Seperating all channels will eat a lot of CPU resource. I have check pfb_channelizer_ccf source, it finally use fftw to process channelizer. So can I directly use fftw to do my work.
On Tue, Dec 21, 2010 at 6:19 PM, Martin Braun <martin.br...@kit.edu> wrote: > On Tue, Dec 21, 2010 at 06:02:44PM +0800, James Jordan wrote: > > Hi all, I need to receive many narrowband signals, but usrp hard ware > only > > provide 4 RX, > > so I need to receive more than one narrowband signals per RX. Is my idea > > possible? > > I dont want to use more than one usrp to achieve that, anyway which will > be an > > option if my first idea can't work. > > If your total bandwidth (sum of all bandwidths) does not exceed a couple > of MHz, you can use the polyphase channelizer (pfb_channelizer_ccf). > The result will be an equally spaced set of narrowband channels. > > Happy DSP'ing, > MB > > -- > Karlsruhe Institute of Technology (KIT) > Communications Engineering Lab (CEL) > > Dipl.-Ing. Martin Braun > Research Associate > > Kaiserstraße 12 > Building 05.01 > 76131 Karlsruhe > > Phone: +49 721 608-3790 > Fax: +49 721 608-6071 > www.cel.kit.edu > > KIT -- University of the State of Baden-Württemberg and > National Laboratory of the Helmholtz Association > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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