[time-nuts] New Subscriber, DIY GPSDO project (yes, another one)

[Matthias Welwarsky]

On Montag, 9. März 2020 22:25:53 CET Attila Kinali wrote:
> On Mon, 09 Mar 2020 13:44:59 +0000
> 
> "Poul-Henning Kamp" <phk at phk.freebsd.dk> wrote:
> > I'm thinking 24h (to minimize GPS periodicities) frequency measurement
> > and adjustment, with a continuous very weak proportional phase adjustment
> > to come with measurement noise and rounding errors ?
> 
> Please correct me if I'm wrong, but that sounds like a
> simplified version of a Kalman filter, with the only
> predicted variable being the frequency of the LO.

I've actually been thinking of using a Kalman filter to find the "true value" 
of the EFC. I just couldn't wrap my mind around the theory yet.

> 
> 			Attila Kinali