Research on GNSS Based High-Speed Train Multi-Sensor Information Fusion Positioning

摘要

Train positioning plays a significant role in Train Control System,particularly its accuracy and reliability is of chief importance for high-speed train system.This paper introduces the evolution of Train Control System and conventional train location methods.According to comparative research on train location methods,it is shown that GNSS and multi-sensor information fusion based on train location methods are the research direction in future,which can improve the performance of the train positioning system.Analysis of the requirement of high-speed train positioning,a constructive platform of high-speed train integrated positioning system based on GNSS and muhi-sensors information fusion is presented,and its key problems are discussed including reliability,accuracy and integrality,for the high-speed train control process modeling and optimization to explore new ways.