On 06/08/2007, at 12:02 PM, KEGan wrote:
Question. If you take a "consumer" GPS, and walk/drive along a path
many times enough. And you could somehow average up all those
readings ... would the average gives you accurate results ?
I haven't tested this scenario so I cannot give a definitive answer.
It would depend whether the offsets from actual and measured
positions was purely random (in which case, 'yes' to your question),
or whether the offset is environmentally influenced (large buildings,
etc) in specific directions ('no' to your question).
For example, if a lake caused the signal to offset your measured
position away (or towards) the lake, then that regularity would
become statistically significant and unable to be removed by repeated
measurements.
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