Positioning device, positioning control method, and...

Details Positioning device, positioning control method, and... Positioning device, positioning control method, and...

2007-04-27

2008-12-23

Issing, Gregory C (Department: 3662)

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

Directive

Including a satellite

C342S357490

Reexamination Certificate

active

07468691

ABSTRACT:
A positioning device includes a phase calculation section which performs a correlation process of a specific positioning base code replica and a positioning base code from a specific transmission source to calculate a present phase of the positioning base code, an estimated phase calculation section which calculates an estimated phase when estimating the present phase based on the phase used for preceding positioning, a Doppler shift of a frequency of a radio wave carrying the positioning base code, and an elapsed time from the preceding positioning, a phase difference evaluation section which determines whether or not a phase difference between the calculated present phase and the estimated phase is within a phase difference allowable range specified in advance, and a positioning section which locates a present position using the phase within the phase difference allowable range.

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Dwarakanath V. Simili et al. “Code-Carrier Divergence Monitoring for the GPS Local Area Augmentation System” ION/IEEE Plans 2006, Apr. 25, 2006 Illinois Institute of Technology, Chicago, IL. pp. 483-493.

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