On Mon, Sep 6, 2010 at 7:30 PM, Marcus D. Leech <mle...@ripnet.com> wrote: > On 09/06/2010 06:17 PM, John Andrews wrote: > > hi, > I want to cross-correlate two complex signals in gnuradio. is there a block > to do that? > Thanks > > _______________________________________________ > > > > Something other than a complex multiply? > > That's what I do for my simple, correlating, interferometer. Just multiple > the two signals together. >
Not a native block, as such, but you'll find a good python implementation in correlator.py here (I hope Martin Dvh doesn't mind posting a link to a directory in his website here...): http://www.olifantasia.com/projects/gnuradio/mdvh/passive_radar/ Comments have some documentation, but it basically does frequency domain correlation (the FFT * conj of FFT-> IFFT thing) and works with complex signals. I've played with it a bit and it seems to work pretty well. Kunal _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
