Spoofer detection power management for GPS receivers

Details Spoofer detection power management for GPS receivers Spoofer detection power management for GPS receivers

1997-01-02

1999-11-30

Issing, Gregory C.

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

Directive

Including a satellite

34235712, G01S 501

Patent

active

059950420

ABSTRACT:
In a GPS receiver, power is conserved by powering down P-code circuitry during and utilizing C/A code circuits during times when interfering signals, such as spoofing signals, are not detected. When spoofing is detected, the P-code circuitry is powered up so that the GPS receiver can continue to operate in the presence of spoofing.

REFERENCES:
patent: 4972431 (1990-11-01), Keegan
patent: 5001776 (1991-03-01), Clark
patent: 5144296 (1992-09-01), DeLuca et al.
patent: 5448773 (1995-09-01), McBurney et al.
patent: 5557284 (1996-09-01), Hartman
patent: 5564094 (1996-10-01), Anderson et al.
patent: 5592173 (1997-01-01), Lau et al.
patent: 5663734 (1997-09-01), Krasner

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