Position bias amelioration method and apparatus in GNSS...

Details Position bias amelioration method and apparatus in GNSS... Position bias amelioration method and apparatus in GNSS...

2008-12-27

2011-10-04

Tarcza, Thomas H. (Department: 3662)

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

Directive

Including a satellite

Reexamination Certificate

active

08031110

ABSTRACT:
A method of eliminating user position biases caused by satellite constellation changes or differential signal gain/loss is provided. The method comprises: (A) substantially continuously determining an unbiased user's position by using a radio receiver”; (B) detecting a “detectable event” by using the radio receiver; (C) measuring a bias caused by the detectable event; (D) performing an update process by accumulating each bias caused by at least one detectable event to generate an accumulated bias; and (E) eliminating the accumulated bias at each Epoch by using a correction process.

REFERENCES:
patent: 5590043 (1996-12-01), McBurney
patent: 6810324 (2004-10-01), Nadkarni

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