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Re: [Discuss-gnuradio] ATSC decoding - Now Working!

From: shea_watson
Subject: Re: [Discuss-gnuradio] ATSC decoding - Now Working!
Date: Mon, 20 Feb 2012 13:42:17 -0800 (PST)

Was anyone able to collect some ATSC data over the weekend?

Also bump about my question about which fr.atsc module does the symbol
detection and recovery.


shea_watson wrote:
> Alright. If I get it working I will post my fixes.  Which part is not
> working?  
> Also, my research only deals with extracting the bit delay to the data
> sync frame.  So, I will not really be doing much with atsc decoding past
> getting a bit stream what would include the sync frame. Which also brings
> up another question.  In the general signal flow of decoding the atsc with
> gnuradio, when will the data sync frame be uncovered?  At the moment, I
> run interp_short, xlate, and fpll.  Those translate the signal to baseband
> and I think fpll demodulates.  Do any of you guys happen to know what fpll
> actually outputs? Like what form is the data in?  Because I don't have
> real over the air data to run through this I can't crack it open to make
> sense of it.  Is it raw binary bit stream after that stage?  Again, my
> intuition is that fpll outputs the raw bitstream and to find the data sync
> frame I will be able to just run a binary correlator with the pn_511
> sequence.  
> Any advice would be helpful.
> Thanks!
> Johnathan Corgan-2 wrote:
>> On Fri, Feb 17, 2012 at 08:31, Tom Rondeau <address@hidden> wrote:
>>> Also, we might be able to host some data files on gnuradio.org. I need
>>> to
>>> look into how much space we have or can set aside for this, but it would
>>> be
>>> nice to have stuff like this easily accessible.
>> We can easily conjure up an extra 10 or 20 GB for an example data file
>> volume.  That's something like a dollar a month.
>> Johnathan
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> address@hidden
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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