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<div class="moz-cite-prefix">Also of note your link to your base
station data must be reliable, and constant. It would be
difficult to (legally) transmit this yourself over a substantial
range. More likely you'd use your cellphone's data plan. You
will need reception across the areas you wish to map.<br>
<br>
Keep in mind your orientation is very variable if you're talking
off-roading. The antenna will be on TOP of the truck, right?
Could be 5 ft off the ground. If you're climbing a 15% grade,
your height would appear 2" lower, and your position would read
15.5" to the side of where your wheelbase is actually centered
above.<br>
<br>
IF this is an offroading scenario, you'd want a MEMS accelerometer
to read your roll/pitch of the vehicle in order to compensate for
problems in antenna position.<br>
<br>
Public surveys of elevation over the USA and the whole world do
exist, and are fairly accurate. DEM- Digital Elevation Map- comes
to mind.<br>
<br>
Danny<br>
<br>
On 7/1/2014 1:24 PM, Nick wrote:<br>
</div>
<blockquote
cite="mid:CA+Qch=+q75PyGFP1rJALi1fK5ZaHFMuHmHPkXuROMJzVQxPCFQ@mail.gmail.com"
type="cite">
<div dir="ltr">Hello,
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div>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?</div>
<div><br>
</div>
<div>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,</div>
<div><br>
</div>
<div>Nick</div>
<div><br>
</div>
</div>
<br>
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