> A GPS is not necessarily accurate to within 10 meters. Heavy tree
cover, obscured horizon (such as a deep canyon) or multipath
distortion (reflections from buildings) can skew the position report
wildly. However, its better than nothing and its usually very good.
> Dave Herzstein
Damn, I was gonna say that bat left the message unsent. Commercial
differential GPS ... referencing a local ground station - will get you
MUCH better reproducibility ****BUT**** the sort of lighweight hand
held sets can be way off 10m anywhere near woods, tall buildings etc
etc.
However, I was thinking on ... GPS is only half the battle (even with
the problems sorted). Maybe via a palm pilot you could interface the
camera to the GPS, a couple of crossed inclinometers and an external
fluxgate compass. That way you would nknow exactly where and in what
direction the compass was looking. Add on a weather station
(temperature, relative humidity, barometric pressure) and you really
could have a bundle of data to download.
If nothing else, it should give you something to talk about as you try
and explain while the pictures are crap. (Ah, a wide-band multi
frequency motion sensor should record camera shake for you ;o)
Bob
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