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FUZZY를 이용한 GPS 수신기 위치데이터의 정확도 개선
이경웅,최한수 조선대학교 에너지.자원신기술연구소 2003 에너지·자원신기술연구소 논문지 Vol.25 No.2
The global positioning system(GPS) is a satellite based precise positioning system avaliable worldwide. The GPS have many error sources. The earth's ionosphere and atmosphere cause delays in the GPS signal that translate into position errors. Some errors can be factored out using mathematics and modeling. The configuration of the satellites in the sky can magnify other errors. The problem of accuracy on GPS measurement data can be meaningful In this study, we propose the method for GPS positioning accuracy improvement. The fuzzy set theory on PDOP(position dilution of precision) and SNR(signal to noise ratio) provide improved for measured positioning data. The accuracy of positioning has been improved by selecting data from original using the fuzzy set theory on PDOP and SNR.