Method and arrangements relating to satellite-based positioning

Details Method and arrangements relating to satellite-based positioning Method and arrangements relating to satellite-based positioning

2004-12-30

2008-11-11

Phan, Dao L (Department: 3662)

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

Directive

Including a satellite

Reexamination Certificate

active

07450063

ABSTRACT:
Alleviating ambiguous pseudorange reconstruction in connection with satellite-based positioning of mobile terminals with assistance data such as Assisted GPS (AGPS). An initial pseudorange selection cycle includes: determining a first admissible pseudorange associated with a first satellite; determining all pseudoranges associated with at least two additional satellites which combined with the first pseudorange form admissible relative pseudoranges; forming a set of pseudorange vectors representing all possible combinations of the determined pseudoranges associated with the first and at least two additional satellites; and forming a set of selected pseudorange vectors by selecting at least one vector from the set of pseudorange vectors.

REFERENCES:
patent: 6408178 (2002-06-01), Wickstrom et al.
patent: 6473694 (2002-10-01), Akopian et al.
patent: 6563461 (2003-05-01), Elgersma et al.

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