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[Patch-gnuradio] QAM receiver modules

From: Mason
Subject: [Patch-gnuradio] QAM receiver modules
Date: Wed, 09 Jul 2008 04:17:41 -0500
User-agent: Thunderbird (X11/20080505)

   So I've been working on writing the QAM demodulation blocks.
What I have so far works in a simulation, but fails between two actual USRPs: the constellation spins and spins, occasionally locking when the frequencies get close enough and then breaking again. I was wondering if anyone knew better constants to use for the alpha/beta/mu/omega greek alphabet soup, because otherwise it's pretty much a six-dimensional optimization problem.

The latest version of the patch is available at (the changes I made to *may* affect other blocks, but the way it was working before was too much like hard compression.)


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