Communications: directive radio wave systems and devices (e.g. – Directive – Including antenna orientation
Patent
1994-11-14
1996-12-10
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including antenna orientation
342 76, H01Q 300
Patent
active
055835147
ABSTRACT:
A system and method for acquiring a satellite with an antenna using a computing portion which determines the variation between the actual orientation of the antenna and an optimum orientation to acquire a satellite. The deviation is computed by: determining the actual orientation of the antenna with respect to true North and producing a first signal indicative thereof; determining the location of the antenna on the Earth and producing a second signal indicative thereof; determining the elevation of the satellite with respect to the location of the antenna and producing a third signal indicative thereof; determining the azimuth of the satellite with respect to the location of the antenna and producing a fourth signal indicative thereof; and using log data for the satellite along with the first, second, third, and fourth signals to compute the position of the satellite relative to the antenna and produce a signal indicative of the deviation. A display is used for illustrating the deviation and can be used as a coarse adjustment device. A second display provides information as to the received signal strength from the satellite to the antenna and can be used as a fine adjustment device. The coarse and the fine adjustment devices interact to provide an effective technique to acquire the satellite.
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patent: 5349286 (1994-09-01), Babitch
patent: 5351060 (1994-09-01), Bayne
Loral Aerospace Corp.
Phan Dao L.
Tarcza Thomas H.
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