Boots – shoes – and leggings
Patent
1993-02-18
1994-12-20
Chin, Gary
Boots, shoes, and leggings
364459, 342357, 342457, G06F 1550
Patent
active
053750594
ABSTRACT:
Systems and methods allow for the accurate determination of the terrestrial position of an autonomous vehicle in real time. A first position estimate of the vehicle 102 is derived from satellites of a global positioning system and/or a pseudolite(s). The pseudolite(s) may be used exclusively when the satellites are not in the view of the vehicle. A second position estimate is derived from an inertial reference unit and/or a vehicle odometer. The first and second position estimates are combined and filtered using novel techniques to derive a more accurate third position estimate of the vehicle's position. Accordingly, accurate autonomous navigation of the vehicle can be effectuated using the third position estimate.
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Christensen Dana A.
Friedrich Douglas W.
Gudat Adam J.
Kyrtsos Christos T.
Stafford Darrell E.
Caterpillar Inc.
Chin Gary
Yee James R.
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