Aeronautics and astronautics – Aircraft structure – Fuselage and body construction
Patent
1978-03-31
1980-08-12
Kelmachter, Barry L.
Aeronautics and astronautics
Aircraft structure
Fuselage and body construction
244122A, 250349, 364454, B64D 2510
Patent
active
042169283
ABSTRACT:
An attitude reference system which uses microwave radiometry to sense the orientation of a vehicle. A fundamental fact of microwave radiometry is that more natural energy emanates from the earth than from the sky. The difference in energy, which is directly proportional to temperature, can be used to estimate attitudinal position. Microwave antennas mounted on an escape vehicle, such as an aircraft ejection seat, receive energy from different directions in a base plane and from a direction perpendicular to the base plane. Vehicle orientation relative to the earth is discerned by comparing the sensed radiometric temperature received from each antenna direction, and seat guidance equipment is programmed to steer the seat in a predefined direction based upon the radiometrically sensed orientation.
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Burklund Vernon D.
Hooper John O.
Stone W. James
Kelmachter Barry L.
Pritchard Kenneth G.
Sciascia Richard S.
Skeer W. Thom
The United States of America as represented by the Secretary of
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