Hm, cosine wave as baseband signal means you get two symmetric spectral peaks around your carrier frequency. In that case, I'd actually just go for a really simple costas loop. You could also do kind of a "matched filter" M&M with a cosine receive filter, but I don't see the advantage.
Notice that sending a cosine can't convey any information. Are you sure this is all you need? The only reason I can instantly think of is using that signal as frequency normal for a different system, and in that case, you're only telling us a tiny fraction of the whole system you're building. Especially the wording "…is about frequency-offset *I think*" suggests you're very much subject to the XY Problem [1], and it would be a very good idea to describe the whole thing you're trying to build, instead of only the very small problem you're acutely trying to solve. Best regards, Marcus [1] http://xyproblem.info On Tue, 2018-03-27 at 00:06 +0900, 김무연 wrote: > Hi last time i asked about synchronization > But my question was too broad > So i couldn't get an answer > I use cosine wave as a baseband signal > And I use 1-bit feedback > I use 2 usrps as a transmitters and 1 usrp as a receiver > And the synchronization i want is about frequency-offset I think > Thanks > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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