Method and apparatus for mitigating multipath effects at a...

Details Method and apparatus for mitigating multipath effects at a... Method and apparatus for mitigating multipath effects at a...

2007-08-07

2007-08-07

Phan, Dao L. (Department: 3662)

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

Directive

Including a satellite

C342S357490

Reexamination Certificate

active

11428127

ABSTRACT:
A method and apparatus for mitigating multipath effects in a satellite signal receiver is described. The method includes computing at least one pseudorange residual as a function of (i) a measured pseudorange to a given satellite, and (ii) an expected pseudorange to the given satellite, which is derived by mathematically projecting a pseudorange to the given satellite. The method also includes applying the measured pseudorange to a sequential-estimation filter, which is configured to solve a navigation-solution problem, when the pseudorange residual satisfies a given threshold.

REFERENCES:
patent: 5202829 (1993-04-01), Geier
patent: 5621646 (1997-04-01), Enge et al.
patent: 6198430 (2001-03-01), Hwang et al.
patent: 6853916 (2005-02-01), Fuchs et al.
patent: 7095370 (2006-08-01), van Diggelen et al.
patent: 2005/0212696 (2005-09-01), Bartone et al.
patent: 2006/0017610 (2006-01-01), Komjathy et al.

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