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윤희상(H. S. Yoon),박태영(T. H. Park),윤용기(Y. K. Yoon),황종규(J. K. Hwang),이재호(J. H. Lee) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
We propose a train position estimation method for automatic train control system. The accurate train position should be continuously feedback to control system for safe and efficient operation of trains in railway. In this paper, we propose the sensor fusion method integrating the tachometer, the transponder, and the doppler sensor for estimation of train position. The external sensors(transponder, doppler sensor) are used to compensate for the error of internal sensor(tachometer). The Kalman filter is also applied to reduce the measurement error of the sensors. Simulation results are then presented to verify the usefulness of the proposed method.