[FOSS-GPS] RTKLIB Vehicle Accuracy

[Felipe G. Nievinski]

Accuracy, budget, baseline length -- pick two.

In your case, keep the baseline as short as possible,
even if that requires setting up your own base station.
Single-frequency receivers are fine if baseline length
is kept under a couple of km.

Signal obstructions are hard to avoid, but you can
minimize their impact by tracking GLONASS
in addition to GPS. So that when a satellite drops,
you'd still have a couple locked on. RTKLIB can
process GLO -- check if the receiver can track too.

Put the rover antenna on the roof of the vehicle
(buy a cheap one with magnetic support).

Those are the principles; I don't have any
specific hardware in mind, though.

-F.


Message: 1
> Date: Tue, 1 Jul 2014 13:24:33 -0500
> From: Nick <darknovanick at gmail.com>
> To: foss-gps at lists.osgeo.org
> Subject: [FOSS-GPS] RTKLIB Vehicle Accuracy
> Message-ID:
>         <CA+Qch=+
> q75PyGFP1rJALi1fK5ZaHFMuHmHPkXuROMJzVQxPCFQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hello,
>
> I am interested in getting an RTK GPS setup working for a moving vehicle,
> not fast, perhaps 10 mph. I would postprocess the data collected later,
> using data downloaded from a nearby station.
>
> My desire is to log elevation data every few seconds as the vehicle drives.
> I hope to achieve 10-20 cm accuracy for the position and the elevation.
>
> As I research RTKLIB, it seems like most information I come across is
> regarding a static location. Is my goal feasible to achieve this kind of
> accuracy as the vehicle moves?
>
> If so, can anyone recommend a good board to get me started? I'm hoping to
> be able to do this for under $200 (just one receiver since the base station
> is public) -- please give me a reality check if this is unlikely. Thanks,
>
> Nick
>
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