If the packets have a preamble, there's a block called correlate_and_sync which should do what you want, although it has some issues. See a thread I started a few days ago about that...
On Thu, Apr 2, 2015 at 3:36 PM, Mike Willis <willis...@gmail.com> wrote: > I have an application that needs to decode short bursts of DBPSK data > (which I am not generating myself). The problem I am having is that > the standard PSK Demod blocks don't lock up in time to correctly > decode the first few flags in the packetised data, which means I > generally lose the first packet. Is there a solution to this - e.g. > once the demodulator has locked up, go back some time (samples) and > start again knowing the locked parameters? > > Mike > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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