Reference carrier phase prediction for kinematic GPS

Details Reference carrier phase prediction for kinematic GPS Reference carrier phase prediction for kinematic GPS

1997-06-05

1999-05-11

Hellner, Mark

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

Directive

Including a satellite

701214, G01S5/02

Patent

active

059032367

ABSTRACT:
A differential carrier phase GPS navigational device comprises an integer present reference phase value from reference phase information received by present vehicle position from the estimated integer, the predicted present reference phase value, and GPS signals received at a vehicle GPS receiver adapted to determine a polynomial function which fits the reference phase information, and to evaluate the polynomial function to determine the predicted reference phase value. Because the position calculator uses a reference phase value that is not delayed, the navigational device is able to provide a vehicle position that corresponds to the present time.

REFERENCES:
patent: 5451964 (1995-09-01), Babu
patent: 5548293 (1996-08-01), Cohen
patent: 5587716 (1996-12-01), Sheynblat
patent: 5600329 (1997-02-01), Brenner
patent: 5602741 (1997-02-01), Talbot et al.
patent: 5610616 (1997-03-01), Vallot et al.
patent: 5731787 (1998-03-01), Sheynblat

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