new FM demodulator

This is merely a historical archive of years 2008-2021, before the migration to mailman3.

A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/osmocom-sdr@lists.osmocom.org/.

Sdr Guru sdrguru1 at gmail.com
Thu Jan 30 14:45:54 UTC 2014


Hi

Perhaps you can add a simple performance test to rtl_fm.
"decoding 100000 samples takes xxx ms" or something like that.
It helps to compare different CPU and OS families.


On Thu, Jan 30, 2014 at 4:19 PM, keenerd <keenerd at gmail.com> wrote:

> On 1/30/14, Anders Lynge Esbensen <anders at lyes.dk> wrote:
> > Hi and thanks for a great tool set.
> >
> > I've implemented a faster FM demodulator for rlt_fm. Its an
> > instantaneous frequency demodulator, like the already implemented atan
> > method, but it uses some math tricks to get rid of the the actual atan
> > calculation. Feel free to use it if you wish
>
> Nice, thank you.
>
> It should probably be under the -A option with all the other types of
> FM demodulator math.  Maybe benchmark it against the other FM
> demodulators, "-A fast" or "-A lut".  The default "-A std" was not
> designed to be very quick, just accurate.  Being faster than "-A std"
> is not very difficult.
>
> Let me see if I can get a fixed-point version written.
>
> -Kyle
> http://kmkeen.com
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20140130/c549639e/attachment.htm>


More information about the osmocom-sdr mailing list