I believe so; see gnuradio/gr-digital/python/digital/generic_mod_demod.py:
...
# symbol timing recovery with RRC data filter
taps = filter.firdes.root_raised_cosine(nfilts,
nfilts*self._samples_per_symbol,
1.0, self._excess_bw, ntaps)
self.time_recov =
digital.pfb_clock_sync_ccf(self._samples_per_symbol,
self._timing_bw, taps,
nfilts, nfilts//2,
self._timing_max_dev)
...
On Fri, Oct 31, 2014 at 3:16 PM, Daniel Batista <dbatist2...@yahoo.com>
wrote:
> Hi,
> do you know if the default PSK Demodulation block does any frecuency
> correction or time recovery?
> After running some tests, I have noticed that when I use a Channel Model
> between PSK mod and PSK demod, I successfully decode my data even I have a
> small frecuency offset or time offset (Epsilon)!
>
>
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>
>
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