This paper introduced the evolution of train control system and train location methods. According to comparative research on train location methods, it is shown that multi-sensor information fusion based train location methods and GNSS is the research direction in future. Then the constructive structure of high-speed train integrated positioning system hased on GNSS is presented, and its key problems are studied including reliability, accuracy and inlegrality, which will give the process modeling and optimization of high-speed train control system a new and available approach.%从国内外列控系统发展出发,比较分析了各种列车定位技术优缺点,结合高速列车定位趋势,剖析组合定位及GNSS导航特点在此基础上,提出基于GNSS的高速列车组合定位方案,并对其可靠性、精确性、完整性等关键问题进行了探讨,为高速列车控制过程建模与优化探索新的途径.
展开▼
