Communications: electrical – Vehicle position indication
Patent
1995-01-04
1996-02-20
Swarthout, Brent A.
Communications: electrical
Vehicle position indication
340990, 364449, G08G 1123
Patent
active
054932947
ABSTRACT:
A vehicle position detecting apparatus comprises satellite designating means for designating at least three satellites from a plurality of satellites revolving around the earth to form a designated satellite combination, vehicle position estimating means for estimating a vehicle position on the basis of the vehicle position data supplied from the designated satellite combination and received by electric wave receiving means mounted on the vehicle, satellite combination fixing means for fixing the designated satellite combination to make constant an offset representing a deviation between the estimated vehicle position and a true vehicle position, and true vehicle position calculating means for calculating the true vehicle position on the basis of the offset and the estimated vehicle position. Various errors detected by sensors or means forming part of the vehicle position detecting apparatus can be minimized so as to enhance the accuracy of the vehicle position at a higher level.
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patent: 5023798 (1991-06-01), Neukirchner et al.
patent: 5119301 (1992-06-01), Shimizu et al.
patent: 5220509 (1993-06-01), Takemura et al.
patent: 5311173 (1994-05-01), Komura et al.
Sumitomo Electric Industries Ltd.
Swarthout Brent A.
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