Recognition of and method and apparatus for GPS antenna lever ar

Details Recognition of and method and apparatus for GPS antenna lever ar Recognition of and method and apparatus for GPS antenna lever ar

1996-10-28

1998-07-21

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

701214, H04B 7185, G01S 502

Patent

active

057840296

ABSTRACT:
This invention reduces the error growth associated with vehicle Dead Reckoning (DR) systems utilizing heading rate sensors (15) by compensating for the lever arm or offset between the Global Positioning System (GPS) antenna (11) and the center of rotation of the vehicle. When turning at moderate speeds, the error induced in the GPS heading by this lever arm can be the dominant error effect. Accordingly, the present invention recognizes this source of error and further describes a method and apparatus for estimating and compensating for the error effect of this lever arm.

REFERENCES:
patent: 5075693 (1991-12-01), McMillan et al.
patent: 5272483 (1993-12-01), Kato
patent: 5404661 (1995-04-01), Sahm et al.
patent: 5416712 (1995-05-01), Geier et al.
patent: 5438771 (1995-08-01), Sahm et al.
patent: 5527003 (1996-06-01), Diesel et al.
"Design and Analysis of a Low Cost GPS Aided Navigation System", by James F. McLellan, A Dissertation Submitted to the Faculty of Graduate Studies, Department of Surveying Engineering, Jan., 1992.

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