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.