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Re: [Discuss-gnuradio] Loops in graphs? Do we need them?
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] Loops in graphs? Do we need them? |
Date: |
Tue, 8 Feb 2005 13:22:07 -0800 |
User-agent: |
Mutt/1.5.6i |
On Tue, Feb 08, 2005 at 12:51:00PM +0530, Prateek Dayal wrote:
> Hi,
>
> I also need to track the phase of a sinusoidal signal for my work on
> NTSC demod. How about applying some kind of linear regression and then
> estimating the phase vs time relationship. As phase varies linearly
> with time, I think that this should be possible.
>
> Regards,
>
> Prateek
In any event, if you need a PLL block, just code it up in C++.
I doubt it'll be more than a page or two of code. We used one in the ATSC
receiver (GrAtscFPLL.{h,cc} in the 0.9 tarball).
For info on writing blocks,
see http://www.gnu.org/software/gnuradio/doc/howto-write-a-block.html
Eric