Satellite communications terminal location system and method

Details Satellite communications terminal location system and method Satellite communications terminal location system and method

1998-03-20

2000-10-03

Vo, Nguyen

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455427, 455456, 342357, H04B 7185

Patent

active

061284688

ABSTRACT:
In a satellite communications system, where a satellite 10 provides a plurality of radio beams 30, and where distance and/or angle measurement from a satellite 10 or satellites 10 enables the position of the user terminal 44, on the surface of the earth 14, to be measured to within an uncertainty of being in one out of a possible plurality of positions 142, when some out of the plurality of positions fall within a single beam 30A, which one of the plurality of possible positions 142 is actually occupied by the user terminal 44 is determined by assessing the quality of signals received from those other, adjacent, overlapping beams 30B-30G which surround the beam 30A.

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patent: 5412389 (1995-05-01), Olds
patent: 5463400 (1995-10-01), Tayloe
patent: 5543813 (1996-08-01), Araki et al.
patent: 5552795 (1996-09-01), Tayloe et al.
patent: 5955986 (1999-09-01), Sullivan

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