Positioning System and Method Thereof
First Claim
1. A positioning system, comprising:
- a Global Navigation Satellite System (GNSS) module, generating a first positioning data according to satellite communication;
a dead reckoning module, estimating a second positioning data according to a measurement data, the first positioning data, and a feedback positioning data of a previous epoch;
a calculating module, deriving a third positioning data from the first positioning data and the second positioning data according to predetermined weights; and
a GIS module, fitting the third positioning data to a map to generate the feedback positioning data of a current epoch, which is taken as a final output of the positioning system and recursively fed back to the dead reckoning module for a next estimation.
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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.
24 Citations
8 Claims
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1. A positioning system, comprising:
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a Global Navigation Satellite System (GNSS) module, generating a first positioning data according to satellite communication; a dead reckoning module, estimating a second positioning data according to a measurement data, the first positioning data, and a feedback positioning data of a previous epoch; a calculating module, deriving a third positioning data from the first positioning data and the second positioning data according to predetermined weights; and a GIS module, fitting the third positioning data to a map to generate the feedback positioning data of a current epoch, which is taken as a final output of the positioning system and recursively fed back to the dead reckoning module for a next estimation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification