Re: [Discuss-gnuradio] Bursty communication Synchronization

[Nick Foster]

On Sun, Nov 20, 2011 at 11:47 PM, adeel anwar <address@hidden> wrote:
> Hello,
>
> Synchronization blocks in GNU Radio are feedback based e.g FLL, PFB clock
> Synch,M&M Synch.
> Control loop takes some time to minimize the error e.g "benchmark_rx.py"
> takes 200+ symbols time
> for FLL and PFB clock synch to lock.
> In some bursty communication where we have to transmit only 1500-2000
> symbols, loosing initial 200 symbols means large no of errors.
> i need to ask that what can be the possible solutions?

Generally the synchronizers should converge faster than that,
especially for high SNR. 200 symbols is a very long time. Try tuning
the loop more aggressively, or reducing the maximum deviation. Very
short preambles (or very tight SNR requirements) may require a custom
data-aided synchronization algorithm.

--n

>
> Thanks,
>        Adeel
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>