Positioning system and method thereof

Details Positioning system and method thereof Positioning system and method thereof

2011-08-30

2011-08-30

Issing, Gregory C (Department: 3662)

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

Directive

Including a satellite

C342S357330

Reexamination Certificate

active

08009087

ABSTRACT:
The invention provides a positioning system. In one embodiment, the positioning system comprises a Global Navigation Satellite System (GNSS) module, a dead reckoning module, a Geographic Information System (GIS) module, and an calculating module. The GNSS module generates a first positioning data according to satellite communication. The dead reckoning module estimates a second positioning data according to a sensor's measurement data, the first positioning data, and a feedback positioning data of a previous epoch. The GIS module fits the first positioning data to a map to generate a third positioning data taken as a final output of the positioning system. The calculating module integrates the third positioning data and the second positioning data according to predetermined weights to obtain the feedback positioning data of a current epoch, which is recursively fed back to the dead reckoning module for a next estimation.

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Li et al, “The Application of Integrated GPS and Dead Reckoning Positioning in Automatoive Intelligent Navigation Systems,” Journal of Global Positioning Systems, vol. 3, No. 2.1, pp. 183-190.

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