[time-nuts] GPSDO control loops and correcting quantizationerror

Poul-Henning Kamp phk at phk.freebsd.dk
Sun Sep 16 21:51:37 UTC 2012


In message <AD054298-F656-477F-9FB1-5D48C1B07C31 at gmail.com>, Dennis Ferguson wr
ites:

>If you
>are using a PLL in both cases, however, then the problems are
>essentially the same.

Well, not quite:  Depending on the stiffness of your PLL, you can
minimize phase error at the cost of frequency error or frequency
error at the cost of phase error, and either is a valid engineering
decision depending which of the two are more important to you.

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Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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