区间内追踪运行列车间直接通信技术研究  

Research of Tracing Train-to-Train Direct Communication on the Same Track

作　　者：陈启香 

机构地区：[1]宝鸡文理学院电气工程学院,陕西宝鸡721000

出　　处：《自动化技术与应用》2016年第6期49-52,56,共5页Techniques of Automation and Applications

基　　金：宝鸡文理学院校级重点资助项目(编号ZK15087)

摘　　要：随着我国铁路运行速度、运行密度的不断提高,使得对信号系统的要求也进一步提高。近年来,出现的列车间直接通信技术有助于减少铁路交通事故,该技术主要实现同一线路上前后行列车之间直接通信。论文提出工作频段为400MHz的列车间直接通信系统方案,并定义了信息格式;紧接着依据其信道特征对列车间直接通信信道进行分析,初步确定路径损耗的预算模型、信道衰落形式,并讨论了多普勒频移对信道的影响;最后对工作频段、通信距离、信道模型、发射功率、时延等参数进行了分析,得出本文提出的列车间直接通信方案有一定的可行性。Because of high speed and high density, the requirement of railway signaling also is higher. Recently, the train-to-train wireless direct communication system is proposed for the railway signal system to contribute to reducing train accidents effectively and to improve the railway safety. The communication system can ensure the tracing trains in the same line communicate each other directly and exchange traffic information timely. This paper presents a scheme of train-to-train direct communication system working on 400 MHz and the frame of information. Then, the channel of the direct train-totrain communication is analyzed according to the characteristics, determined the budget model of path loss, fading form, discusses the influence of Doppler shift on channel. Meanwhile, the analysis result of frequency, communication distance, channel model, transmitter power, time delay shows the feasibility of the proposed scheme.

关 键 词：车车直接通信 路径损耗 衰落 移动到移动信道 

分 类 号：TU285.21[建筑科学—建筑设计及理论] TN929.5[电子电信—通信与信息系统]