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Re: [Discuss-gnuradio] PLL simulation
From: |
Leo Silva Garcia de Britto |
Subject: |
Re: [Discuss-gnuradio] PLL simulation |
Date: |
Mon, 6 Oct 2003 13:17:08 -0300 (BRT) |
thanks but unfortunatelly it's not my case... anyway i managed to fix it.
The problem was my
loop was unstable and i didn't realize it in the first tests i've made,
changing the pole position and limiting the counting capability of
the nco fixed the problem.
I'm trying to extract from data a symbol period reference, using a costas
loop in software.
Leo
On Fri, 3 Oct 2003, John
Gilmore wrote:
> There is a software phase-locked-loop implementation in the Network
> Time Protocol implementation by Dave Mills at the Univ. of Delaware
> (NTPD). I have no idea if it will meet your needs. It is not
> a signal processing app; it is trying to compute very accurate time
> based on signals from different clocks, and measure how each clock
> varies from the others to find the best ones.
>
> John Gilmore
>
>