Forum: GNU Radio Filterbanks

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63d6de710dcc83e3c19af98ab6c401d7?d=identicon&s=25 Marcus Leech (Guest)
on 2006-06-06 20:47
(Received via mailing list)
Is there a usable filterbank block currently available in Gnu Radio?

If I wanted to break up a 4Mhz input bandwidth into a plenitude of
narrower channels, farming out
  the processing of these narrower channels to other processors, is
there a block that can help get
  me started?

I'm thinking of doing a distributed SETI-search engine this way
3596cfe1d579c65b9babd35e8787977c?d=identicon&s=25 Matt Ettus (Guest)
on 2006-06-06 21:45
(Received via mailing list)
Marcus Leech wrote:

> Is there a usable filterbank block currently available in Gnu Radio?
>
> If I wanted to break up a 4Mhz input bandwidth into a plenitude of
> narrower channels, farming out
>  the processing of these narrower channels to other processors, is
> there a block that can help get
>  me started?
>
> I'm thinking of doing a distributed SETI-search engine this way
>
We have the analysis_filterbank and the synthesis_filterbank, which can
be found in

    gnuradio-core/src/python/gnuradio/blksimpl/filterbank.py

and the ayfabtu.py example shows the basic usage.

Matt
745d8202ef5a58c1058d0e5395a78f9c?d=identicon&s=25 Eric Blossom (Guest)
on 2006-06-06 22:50
(Received via mailing list)
On Tue, Jun 06, 2006 at 02:46:00PM -0400, Marcus Leech wrote:
> Is there a usable filterbank block currently available in Gnu Radio?
>
> If I wanted to break up a 4Mhz input bandwidth into a plenitude of
> narrower channels, farming out
>  the processing of these narrower channels to other processors, is
> there a block that can help get
>  me started?
>
> I'm thinking of doing a distributed SETI-search engine this way

Yes,

See gnuradio-core/src/python/gnuradio/blksimpl/filterbank.py

There's a somewhat bit-rotted examples that uses this.
See gnuradio-examples/python/usrp/ayfabtu.py.

Eric
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