On 10/05/2011 05:05 PM, Phelps Williams wrote:
Excuse my ignorance but I need this spelled out for me. I am trying to come up with a phase demodulator to effectively perform the opposite function as the gr_phase_modulator_fc class. According to the code this is effectively doing output=complex(cos(in*sensitivity), sin(in*sensitivity)).

Is there a better approach than simply taking the real component of the output of gr_phase_modulator_fc and then doing:

original_in = arccos(real(output)) / sensitivity

Is there a block that already does this in grc?  Thanks!

-Phelps


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There's a quadrature demod block that can generally be used to demodulate both PM and FM signals.



--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org

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