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| Ok, that makes sense. Heading is done the same way with the low cost GPS units for cars and such.
Yeah, visible light refracts more than radio, but radio reflects off pretty much anything while visible light would need a very smooth surface like standing water. I know reflections are an issue with GPS, but maybe not so much with RTK GPS. With what we're doing with cameras, we're going to need a "base station" (really just a light source) every 100-200 yards anyway, so I don't think refraction would be much of an issue. RTK is incredible technology, but I think the camera stuff could have some uses worth exploring. Maybe.
Thanks again Ed, and also arg1333 and Born2farm. This is very helpful.
Edited by murrdpirate 6/27/2012 10:37
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Brief overview/costs of RTK positioning systems?
