Earth sensor for satellites with radiance compensation

Details Earth sensor for satellites with radiance compensation Earth sensor for satellites with radiance compensation

1994-04-18

1995-12-19

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250342, 244171, G01J 506

Patent

active

054770521

ABSTRACT:
The attitude of a satellite is determined by using an array of IR detectors receiving an image of space and the Earth. The detectors are positioned so that at least one detector monitors the radiance from the Earth's horizon and a second detector monitors a region of the Earth adjacent to said horizon. The output of the first detector is compensated for variations in the radiance of the Earth by using the output of the second detector.

REFERENCES:
patent: 3304425 (1967-02-01), Astheimer
patent: 4048500 (1977-09-01), Moore
patent: 5055689 (1991-10-01), Proffit et al.

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