Method and apparatus for improving the accuracy of relative posi

Details Method and apparatus for improving the accuracy of relative posi Method and apparatus for improving the accuracy of relative posi

1997-07-10

2000-04-11

Issing, Gregory C.

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

Directive

Including a satellite

701213, G01S 503

Patent

active

060493046

ABSTRACT:
The accuracy of relative position estimates between two vehicles, generated using a satellite-based navigation system, is improved by eliminating at an early stage in the calculation process, errors affecting simultaneously both receivers. The standard absolute navigation equations are modified to solve directly for relative position, while avoiding a final step differentiation, thereby providing increased precision.

REFERENCES:
patent: 5596332 (1997-01-01), Coles et al.
patent: 5680140 (1997-10-01), Loomis
patent: 5781150 (1998-07-01), Norris
Rudel, Marc-Philippe, Baldwin, Jonathan, "GPS Relative Accuracy for Collision Avoidance", Navigation Technical Meeting in Santa Monica, California, Jan. 1997.
Baldwin, Jonathan, "Traffic Alert System Technical Design Summary", Apr. 1994.

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