A New GPS Position Correction Method Based on Genetic Programming
More and more mobile devices equipped with global positioning system (GPS) are helpful in tour navigation. However, such consumer-grade GPS receivers usually have low accuracy in positioning and require position correction algorithms. In this paper, we proposed an evolutionary computation based technique to correct a GPS receiver with another GPS receiver and a known reference point. The proposed technique can be implemented without changing any hardware. It generates a correction function from given NMEA (national Marine Electronics Association) information. Using such function to derive correct position information could be efficient. Experiments are conducted to demonstrate performance of the proposed technique. Positioning error could be reduced from in the order of 10 m to in the order of 1 m.
KeywordsGlobal Positioning System (GPS) Position Correction Genetic programming evolutionary computation
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