[time-nuts] GPS position survey

Poul-Henning Kamp phk at phk.freebsd.dk
Sun May 5 06:51:55 EDT 2013

In message <8311230247672528820 at unknownmsgid>, =?ISO-8859-1?Q?Miguel_Barbosa_Go
n=E7alves?= writes:

>This receiver has the possibility of averaging it's position before
>entering what Trimble calls the overdetermined clock state. The
>default is to average the position with 2000 fixes.
>What do you believe is a good number of fixes for the survey in this case?

It will be enough for error detection and it will stabilize your
signal somewhat, but it is not even remotely close to giving you
a precise position which will attenuate the 12h wiggles from the
satellite orbits.

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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