From: Eugene Leitl (eugene.leitl@lrz.uni-muenchen.de)
Date: Fri Dec 11 1998 - 00:17:48 MST
Michael Lorrey writes:
> Well, I was under the impression that they were gonna remove the randomizer
> algorithm sometime soon, so civvies would get the same accuracy.
You don't need to remove anything differential GPS (DGPS) provides
dm realtime accuracy, which is significantly better than you get
without selective availability. I think European 'civvies were
thinking aloud about a European GPS solution for civil uses.
Solid-state MEMS accelerometers have been built which resolve about a
ug, while being remarkably shockproof.
Realtime heading information can be obtained from magnetic field
sensors.
While each information itself is too unreliable, taken together the
data can easily be used for 2d and 3d autonomous vehicle
operation. The reason it's not done is not technological infeasibility
but legal uncertainty.
'gene
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