Method of managing additional filters in a satellite...

Details Method of managing additional filters in a satellite... Method of managing additional filters in a satellite...

2007-03-16

2011-12-06

Phan, Dao L (Department: 3662)

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

Directive

Including a satellite

C342S357640

Reexamination Certificate

active

08072377

ABSTRACT:
A method of managing additional filters in a navigation system fitted to a vehicle, the system acting, during a journey of the vehicle, to deliver at least one position of the vehicle by using a main filter for merging data coming from a constellation of visible satellites present above a vehicle horizon, each additional filter excluding data coming from one of the satellites in order to obtain a corrected position in the event of failure of the excluded satellite. The steps including from a position of the vehicle, determining a theoretical constellation of satellites present above the horizon; and for each satellite present in the theoretical constellation, creating and maintaining an additional filter excluding that satellite.

REFERENCES:
patent: 5760737 (1998-06-01), Brenner
patent: 2003/0117317 (2003-06-01), Vanderwerf
patent: 2866423 (2005-08-01), None

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