On Sat, 2015-10-24 at 12:00 -0400, discuss-gnuradio-requ...@gnu.org wrote: > Message: 2 > Date: Fri, 23 Oct 2015 19:56:19 -0400 > From: "Marcus D. Leech" <mle...@ripnet.com> > To: "Discuss-gnuradio@gnu.org" <Discuss-gnuradio@gnu.org> > Subject: [Discuss-gnuradio] Synchronous AM detector
> Has anyone done a synchronous AM detector, rather than envelope > detector > in GR? I want to play around, just wondering if anyone else > has done it. I would doubt it. Coherent detection of OOK 2-ASK has little improvement (Eb/No of 11.5 dB vs 12.3 dB and Pbe = 10^-4 [1]) over non-coherent detection in an AWGN channel. So it's generally not with the extra complexity. Coherent detection of antipodal 2-ASK, a.k.a. BPSK, requires 3 dB less energy for the same BER, compared to coherent detection of OOK 2-ASK in an AWGN channel. Do you have non-AWGN noise in the channel (e.g. nearby interferers)? -Andy [1] Carlson, A. Bruce; Crilly, Paul B.; "Communications_Systems: An Introduction to Signals and Noise in Electircal Communication," McGraw-Hill, 2010, Chapter 14 _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
