Data processing: vehicles – navigation – and relative location – Navigation – Space orbits or paths
Patent
1997-06-11
1999-08-10
Zanelli, Michael
Data processing: vehicles, navigation, and relative location
Navigation
Space orbits or paths
701213, 701 13, 244158R, 342357, G01S 502
Patent
active
059351969
ABSTRACT:
The present invention is directed toward a navigation system and method for a high orbit spacecraft, which passively utilizes UHF signals carrying intersatellite ranging data transmitted by a constellation of satellites that travel in lower orbits around a celestial sphere. The navigation system enables the high orbit spacecraft to self locate its position relative to an earth centered coordinate frame and comprises a receiver for receiving the UHF signals carrying the intersatellite ranging data and a Kalman or optimum filter coupled to the receiver for processing the ranging data received by the receiver and generating and updating spacecraft position data.
REFERENCES:
patent: 5267167 (1993-11-01), Glickman
patent: 5490076 (1996-02-01), Rawicz et al.
patent: 5506781 (1996-04-01), Cummiskey et al.
patent: 5528502 (1996-06-01), Wertz
patent: 5717404 (1998-02-01), Malla
Brodie Peter M.
Doyle Laurence J.
ITT Manufacturing Enterprises
Plevy Arthur L.
Zanelli Michael
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