Method and system for attitude sensing using monopulse GPS proce

Details Method and system for attitude sensing using monopulse GPS proce Method and system for attitude sensing using monopulse GPS proce

1998-05-04

2000-01-25

Tarcza, Thomas H.

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

Directive

Including a satellite

342152, 34235706, G01S 502, H04B 7185

Patent

active

060183152

ABSTRACT:
A space vehicle uses a signal received from a global positioning system (GPS) satellite (51, FIG. 1) to determine the attitude of a space vehicle. The signal is received through a pair of antennas (10, 11) and converted to sum and difference outputs by a sum and difference circuit (30). These outputs are then conveyed to down converter/correlators (55), and then to envelope detectors (60). The outputs of the envelope detectors (60) are then converted to a digital format by an analog to digital converter (70). The digitally formatted sum and difference amplitudes are then used by a processor (80) to calculate the required attitude adjustment to the space vehicle.

REFERENCES:
patent: 5101356 (1992-03-01), Timothy et al.
patent: 5296861 (1994-03-01), Knight
patent: 5341145 (1994-08-01), Eckersten et al.
patent: 5359329 (1994-10-01), Lewis et al.
patent: 5463656 (1995-10-01), Polivkov et al.
patent: 5757316 (1998-05-01), Buehler
patent: 5831570 (1998-11-01), Ammar et al.

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