[chbot] Differential GPS

Charles Manning cdhmanning at gmail.com
Tue Mar 27 20:06:02 BST 2018

Hi Robin

As the old saying goes.... it depends.

Some solutions are designed for static positioning (ie a person standing
holding a pole still for n seconds while the position converges) and some
are for dynamic positioning (ie your walnut harvester bumping along at a
metre or so per second).

Some GNSS information (eg. velocity/heading) are only reliable at more than
a certain speed - maybe 1 or 2 metres/sec.

A lot will depend on antenna quality and various other factors.

There are heaps of satellites up now, so good multi-constellation receivers
are giving very good results these days.

On Tue, Mar 27, 2018 at 11:30 AM, Robin Gilks <robin at gilks.org> wrote:

> This is the package I was thinking about - it's been about for a while but
> it looks like it might help me navigate my walnut harvester!!
> http://rtklib.com/
> --
> Robin Gilks
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