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Re: [Discuss-gnuradio] GNU Radio conditional operation

From: Songsong Gee
Subject: Re: [Discuss-gnuradio] GNU Radio conditional operation
Date: Thu, 28 Apr 2011 01:27:39 +0900

Thank you for your answer.

I have one more question,
In that directory, there are lots of python script,
Unfortunately, I'm not good at that language
and I have just learned GNU Radio with GRC

Is that what I wanted now available in GRC?

2011/4/27 Martin Braun <address@hidden>
On Wed, Apr 27, 2011 at 08:54:15PM +0900, Songsong Gee wrote:
> Hi,
> I'm wondering whether I can use GNU Radio with conditional operation
> For example,
> Listens signal, and if preamble received, skip preamble and continue listening
> if payload received, store it into file sink
> Like that.

Hi Songsong Gee,

when using gr_blocks, you can do all kinds of stuff like that. Remember
that you can output pretty much anything when receiving something. So
you could write a block that simply doesn't output anything as long as
no payload is being pushed into its input.

There are some examples for this. Check out


Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Dipl.-Ing. Martin Braun
Research Associate

Kaiserstra├če 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-43790
Fax: +49 721 608-46071

KIT -- University of the State of Baden-W├╝rttemberg and
National Laboratory of the Helmholtz Association

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