[chbot] Differential GPS

Mark Atherton markaren1 at xtra.co.nz
Tue Mar 27 20:37:13 BST 2018

Also consider then amount of overhead foliage...

On 28/03/2018 8:06 AM, Charles Manning wrote:
> 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 
> <mailto: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/

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