Positioning system

Details Positioning system Positioning system

2005-07-12

2005-07-12

Issing, Gregory C. (Department: 3662)

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

Directive

Including a satellite

Reexamination Certificate

active

06917330

ABSTRACT:
In order to solve a conventional problem that precision deterioration that cannot be determined by only a DOP, a positioning system is provided which comprises: a receiver for receiving signals from a plurality of positioning satellites to output data received from satellites; a satellite selector for selecting a plurality of combinations of positioning satellites to be objects of positioning calculation based on the data received from satellites to output satellite combination data; a positioning calculator for performing positioning calculation based on the data received from satellites and the satellite combination data to output positioning results thereof; a velocity detector for detecting a velocity of the positioning system to output velocity data; and a positioning output determining unit for selecting a positioning result closest to a predicted position out of the positioning results to output the positioning result as a positioning output.

REFERENCES:
patent: 4928107 (1990-05-01), Kuroda et al.
patent: 5155688 (1992-10-01), Tanaka et al.
patent: 5323163 (1994-06-01), Maki
patent: 5373298 (1994-12-01), Karouby
patent: A3-72285 (1991-03-01), None
patent: A3-108681 (1991-05-01), None
Virball, V.G. et al “A GPS Integrity Channel Based Fault Detection and Exclusion Alogrithm using Maximum solution Separation,” IEEE PLANS '94, Apr. 1994, pp. 747-754.
Tsuchiya et al., “Basis of GPS Surveying”, p. 93 w/ English language summary.

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