[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] Unable to find header decoding block

From: Adeel Anwar
Subject: Re: [Discuss-gnuradio] Unable to find header decoding block
Date: Thu, 1 Mar 2012 09:29:15 +0500


Correlator (input=1 bit-per-byte) detects the header while framer_sink separates the payload.
Output of correlator the 1st bit location represents input data (1 bit-per-byte) while 2nd bit location represents the detection of header. Framer sinks keeps on checking this 2nd bit and separates payload bits.


On Thu, Mar 1, 2012 at 1:37 AM, Dhrubojyoti Roy <address@hidden> wrote:
Dear All,

I was exploring the narrowband benchmark codes, I am not able to figure out how the header of an incoming packet is read. It appears that the connections made are:

uhd_receiver->[channel_filter->(demodulator->correlator->framer_sink)] where framer_sink has the received packet queue. However, the queue_watcher function is defined so to unmake the payload, which means that the header has been read apriori. I would like to know in which step the packet header is read, and how to access the signal processing block that does it.

I need to customize the packet header and add extra processing to the header decoding block. Any help would be much appreciated.

Thanks and Regards,

Dhrubojyoti Roy
1655, North 4th Street, Apt-D
Columbus, OH-43201
Contact no.: +1-740-417-5890

Discuss-gnuradio mailing list

reply via email to

[Prev in Thread] Current Thread [Next in Thread]