Microwave landing system with .+-.90 degree azimuth clearance gu

Details Microwave landing system with .+-.90 degree azimuth clearance gu Microwave landing system with .+-.90 degree azimuth clearance gu

1984-05-29

1987-06-30

Blum, Theodore M.

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

Directive

Beacon or receiver

342 35, 342412, G01S 116, G01S 118

Patent

active

046774424

ABSTRACT:
A microwave landing system incorporates a set of antennas for the sequential transmission of guidance signals through a sequence of directions to enable the reception and decoding of the signals by an airborne receiver. Circuitry is included for the retransmission of a frame of the signals by a procedure wherein the directions of transmissions is altered so as to increase the guidance sector over which the receiver is effective.

REFERENCES:
patent: 3255900 (1966-06-01), Graham
patent: 3262111 (1966-07-01), Graham
patent: 3852749 (1974-12-01), Kohler
patent: 4306239 (1981-12-01), Enein
patent: 4429312 (1984-01-01), Chisholm
"Aeronautical Communications" International Civil Aviation Organization, 4th Ed., vol. 1, Apr. 1985, pp. 160-2B-1.

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