Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1976-03-03
1977-09-06
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
325 4, 325 14, 342117R, G01S 304
Patent
active
040471756
ABSTRACT:
This invention relates to a television antenna directing and tracking system for directing a television repeating or relaying antenna mounted on an aircraft toward a ground station. The air-borne office is provided with a coordinate transforming device for transforming the azimuth angle .phi..sub.A (t) and the elevation angle .theta..sub.A (t) which represent the direction of the aircraft with respect to the longitude and latitude of the globe or the globe coordinate into the azimuth angle .phi..sub.B (t) and the elevation angle .theta..sub.B (t) at the air-borne coordinate. The ground office is equipped with receiving means and tracking means and the air-borne office receives command signals regarding the azimuth angle .phi..sub.A (t) and the elevation angle .theta..sub.A (t) from the ground office. Further, the air-borne office is equipped with means for computing by itself the azimuth angle .phi..sub.A (t) and the elevation angle .theta..sub.A (t) based on the flight informations without the aid of the ground office.
REFERENCES:
patent: 2626348 (1953-01-01), Nobles
patent: 2627021 (1953-01-01), Hansell et al.
Electronics, Aug. 2, 1963, pp. 32, 33.
Shimizu Kuniaki
Taira Hideya
Berger Richard E.
Tokyo Keiki Company Limited
Wilbur Maynard R.
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