基于UWB技术的地铁列车精确定位研究

Research onPrecise Positioning of Subway Train Based on UWB Technology

本文提出一种基于UWB(Ultra Wide Band)技术的地铁列车追踪定位方式系统,介绍了UWB的基本概念以及测距原理、UWB常用的定位算法,并利用MATLAB软件进行了仿真实验,实现前后无滤波的误差比较。仿真结果表明,所提出的UWB列车定位计算精度高误差小,实现对列车目标进行定位跟踪,满足CBTC要求。利用UWB技术可以精准、高效的测量地铁列车实时位置,并能够对列车运行轨迹进行记录,为地铁调度系统提供更高效的运行数据。

This paper presents a subway train tracking and positioning mode system based on UWB(ultra wide band)technology,introduces the basic concept of UWB,the ranging principle and the common positioning algorithm of UWB,and carries out simulation experiments with MATLAB software to realize the error comparison without filtering before and after.The simulation results show that the proposed UWB train positioning calculation has high accuracy and small error,realizes the positioning and tracking of train targets,and meets the requirements of CBTC.Using UWB technology,we can accurately and efficiently measure the real-time position of subway trains,record the train track,and provide more efficient operation data for the subway dispatching system.