POSITIONING DEVICE

PROBLEM TO BE SOLVED: To achieve a positioning device capable of accurately obtaining the position of an own device only by a term of pseudo distance of not more than 1 ms when positioning and calculating the position of an own device by a highly precise GPS receiver. SOLUTION: An initial value calc...

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Bibliographische Detailangaben
1. Verfasser:	TORII ISATO
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SIGNALLING SURVEYING TESTING TRAFFIC CONTROL SYSTEMS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To achieve a positioning device capable of accurately obtaining the position of an own device only by a term of pseudo distance of not more than 1 ms when positioning and calculating the position of an own device by a highly precise GPS receiver. SOLUTION: An initial value calculation section 141 of the positioning device 10 sets up a navigation equation with the position of an own device as an unknown number by a Doppler frequency and solves the navigation equation by the least square method. Then, the initial value calculation section 141 gives the solution to a true position estimation section 142. The true position estimation section 142 of the positioning device 10 sets an observation equation by a term of a pseudo-distance of not more than 1 ms using the initial value, and estimates and calculates a precise position of the positioning device 10 from the observation equation. COPYRIGHT: (C)2010,JPO&INPIT