[time-nuts] Positional accuracy of the M12+T
Poul-Henning Kamp
phk at phk.freebsd.dk
Wed Jan 3 08:12:49 EST 2007
In message <5197.202.64.189.90.1167829315.squirrel at webmail.lysator.liu.se>, bg@
lysator.liu.se writes:
>Hmmm... with 25m position accuracy (and 100ns is about 30m), how do they
>really get time down to a few ns. Clever engineering! :-)
Position hold mode allows them to solve N(sat) equations with one
unknown instead of N(sat) equations with four unknowns.
--
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.
More information about the time-nuts
mailing list