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摘要：通过对车地通信方式的研究，找到适合高速铁路的通信技术，来达到缩小行车的时间间隔、加大发车的数量，从而提高交通运输效率的目的。本文对车地通信的历史以及发展趋势等等做了介绍，对车地通信原理的分析车地通信过程的建模。本文主要介绍了目前主要的车地通信的方式，包括应答器、轨道电路、GSM-R、无线列调的方法，分别分析了它们的组成部分、工作原理等等。深入研究各种车地通信技术的工作方式以及在实际应用中的情况，然后通过对主要的技术指标进行对比，比如带宽能力、传输速率、抗干扰能力、系统复杂性、技术架构的难度、安全性等方面，进行各方面优缺点的比较，然后进行适当的分析，从而找到适合高速铁路的通信方式，最后说明了GSM-R网络设计方案。
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关键词：车地通信；轨道电路；GSM-R；无线列调；技术指标4042
Train-ground communication modes of comparative study
Abstract: Through the comparative study of train-ground communication modes, to find what is suitable for high speed railway communications technology, then to achieve reduced driving time interval, and increase the number of traffic, thereby improving the transportation efficiency. In this paper，We communicate the train-ground communication history and develop trend, and make a presentation on the train-ground communication theory to the analysis of the communication process modeling. This paper describes the current main vehicle to communicate the way, including transponders, track circuits, GSM-R, the wireless method of adjusting the column were analyzed their part, working principle and so on. Depth study of the vehicle to communicate techniques work well in practice the situation, and then by comparing the major technical indicators, such as bandwidth capabilities, the transmission rate, anti-jamming capability, system complexity, difficulty of technical architecture, security and other aspects, advantages and disadvantages of various aspects of the comparison, and then make the appropriate analysis to find means of communication for high-speed railway, and finally describes the GSM-R network design project.
Keywords: Train-ground communication；Track circuit；GSM-R；Train radio dispatching；Technical index
目 录
1 绪论 1
1.1 研究铁路信号系统中车地通信的目的和意义 1
1.2 车地通信的发展趋势 2
1.3 本章小结 3
2 动车组车地通信技术 4
2.1 应答器 4
2.1.1 应答器的分类 4
2.1.2 应答器的工作原理 4
2.1.3 应答器的用途 5
2.2 GSM-R通信系统 6
2.2.1 GSM-R系统结构 6
2.2.2 GSM-R功能特点 7
2.3 无线列调 7
2.3.1 无线列调的分类 7
2.3.2 无线列调系统组成 8
2.3.3 无线列调系统功能 9
2.3.4 无线列调的数据传输 9
2.4 轨道电路 9
2.4.1 无线列调的数据传输 9
2.4.2 轨道电路原理 10
2.4.3 轨道电路分类 10
2.4.4 轨道电路工作状态 11
2.4.5 轨道电路应用 11