Method and apparatus for combining measurements and...

Details Method and apparatus for combining measurements and... Method and apparatus for combining measurements and...

2006-12-20

2009-02-10

Phan, Dao L (Department: 3662)

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

Directive

Including a satellite

C342S357490

Reexamination Certificate

active

07489269

ABSTRACT:
Method and apparatus for processing satellite signals from a first satellite navigation system and a second satellite navigation system is described. In one example, at least one first pseudorange between a satellite signal receiver and at least one satellite of the first satellite navigation system is measured. At least one second pseudorange between the satellite signal receiver and at least one satellite of the second satellite navigation system is measured. A first difference between a first time reference frame of the first satellite navigation system and a time reference and a second difference between a second time reference frame of the second satellite navigation system and the time reference are obtained. The at least one first pseudorange and the at least one second pseudorange are combined using the first and second differences in time references.

REFERENCES:
patent: 5523763 (1996-06-01), Loomis
patent: 6215442 (2001-04-01), Sheynblat et al.
patent: 6430416 (2002-08-01), Loomis
patent: 6944540 (2005-09-01), King et al.
patent: 7095368 (2006-08-01), van Diggelen
patent: 2003/0085841 (2003-05-01), Spilker, Jr. et al.

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