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Re: [Discuss-gnuradio] My First HDTV screenshot from USRP

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] My First HDTV screenshot from USRP
Date: Mon, 3 Apr 2006 19:31:26 -0700
User-agent: Mutt/1.5.9i

On Mon, Apr 03, 2006 at 09:11:37PM -0400, Marcus Leech wrote:
> I'm having a hard time believing that processing ATSC video is a
> *less* CPU-intensive application than pulsar processing, but I could
> be completely wrong.

We'll see ;)

We know more now then we knew then (good thing!)  We can use fft
based filtering, which should speed up a lot of the code.  In
addition, if we stick to training the equalizer only on the VSB data
field sync, we can use fft filtering in the equalizer for 311 out of
312 data segments in every field.  The equalizer is currently running
256 taps at 10.76 MS/sec.  Moving from N^2 to N log N should help.


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