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Re: [Discuss-gnuradio] Trace mpsk_receiver_cc()

From: Tom Rondeau
Subject: Re: [Discuss-gnuradio] Trace mpsk_receiver_cc()
Date: Wed, 04 Jun 2008 11:14:06 +0100
User-agent: Thunderbird (Windows/20080421)

irene159 wrote:
OK, so far I have been able to call gr.mpsk_receiver_cc.freq() from dqpsk.py
even if I haven't found were it is coded.

        print "NCO frequency : %f" % self.receiver.freq()

My purpose is to study mpsk_receiver_cc Costas loop features and I would
like to get Costas loop NCO frequency value for each circle in the loop. But
how can I do this?

You'll probably want to do this inside gr_mpsk_receiver.cc instead of calling the freq() function if you want to get a report of the value for every iteration of the loop.

The frequency value (d_freq) is update in:

You can also turn on verbose mode by setting VERBOST_COSTAS to 1 at the top of gr_mpsk_receiver.cc and recompiling/installing. This pumps out a lot of info on the current state of the loop.



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