Fixed site and satellite data-aided GPS signal acquisition metho

Details Fixed site and satellite data-aided GPS signal acquisition metho Fixed site and satellite data-aided GPS signal acquisition metho

1999-02-19

2000-09-19

Tarcza, Thomas H.

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

Directive

Including a satellite

34235705, 34235706, H04B 7185

Patent

active

061219231

ABSTRACT:
A fixed site and satellite data-aided system and method of GPS signal acquisition from a plurality of broadcasted GPS signals includes lengthening a pre-detection integration interval so that weak signals can be detected by operating coherently on captured signals. Coherency is ensured by relying on the predictability of the satellite signal's data pattern. The described method significantly reduces correlation resolution time based on applying information regarding code phase delays from each satellite in view to reduce code search space for other satellites being correlated. A position fix can be either computed locally or remotely at the fixed position reference site.

REFERENCES:
patent: 5148452 (1992-09-01), Kennedy et al.
patent: 5610984 (1997-03-01), Lennen
patent: 5663734 (1997-09-01), Krasner
patent: 5781156 (1998-07-01), Krasner
patent: 5825887 (1998-10-01), Lennen

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