Hi Agam
I have no idea about details on PSK mod/demod blocks, BUT... one simple
thing...
Did you check the output right after the `PSK demod`, `Packed to Unpacked`,
`Packet Decoder`?
Bytes can be plotted after converted to float with `char to float`
Regards,
Jeon.
2015-06-01 19:01 GMT+09:00 S
Hello everyone,
I try to simulate PSK modulation and demodulation without channel model to
calculate BER. The flow graph as shown below.
From File Source to PSK Mod is working, I can see the constellation even
with ISI. But after PSK demod there's no output.
Is there's anything wrong with
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)
Thank you Karl!
On Saturday, November 1, 2014 12:25 AM, Karl Koscher
wrote:
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_pe
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 (Epsilo
