[LEAPSECS] real-time UT1 realisation
phk at phk.freebsd.dk
Thu Sep 22 11:55:54 EDT 2011
In message <20110922150945.GC5501 at lake.fysh.org>, Zefram writes:
>But anyway: how do you imagine applying a Kalman filter?
I would use Bulletin A's as input, but I havn't given it more
thought that that.
First thing, I would probably grab all the recent Bul'As
and see how big the difference between the 7 day prediction
and the subsequent rapid is.
Eyeballing it says around a couple of milliseconds, which, unless
you have done things to your hardware, is lost in the NTP noise.
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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