Present position locating method

Details Present position locating method Present position locating method

2008-04-03

2009-11-24

Phan, Dao L (Department: 3662)

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

Directive

Including a satellite

C342S357490, C342S357490

Reexamination Certificate

active

07623069

ABSTRACT:
An evaluation point E of a present position candidate corresponding to each satellite set is calculated based on an a priori residual (APR) (APR value), a PDOP value, and the number of satellites of the target satellite set according to E=k1·f1(APR)+k2·f2(PDOP)+k3·f3(number of satellites). Evaluation coefficients k1to k3for respectively weighting evaluation functions f1to f3are determined based on an APR average value.

REFERENCES:
patent: 6670916 (2003-12-01), Edwards et al.
patent: 7292184 (2007-11-01), Uozumi
patent: 2003/0156058 (2003-08-01), Edwards et al.
patent: 2003-240836 (2003-08-01), None
patent: 2006-058200 (2006-03-01), None

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