城市轨道交通通信传输系统现状及技术发展趋势

轨道交通作为现代化城市的交通工具，由于环境污染小、旅行速度快、运行密度大，能够有效缓解城市交通拥护的状况，越来越受到各国的普遍重视。通信系统是轨道交通运营指挥、企业管理、服务乘客的网络平台，它是轨道交通正常运转的神经系统。文章阐述了城市轨道交通通信传输系统的技术现状、通过对通信技术以及轨首交通需求的分析，提出了城市轨道交通通信传输技术的发展趋势。

Present Situation and Teornology Develoement Trend of Commonication Transmitting System of Urban Rait Transt

The urban transit, being the means of transport for the modern city, can effectively ease the urban traffic congestion due to the less pollution to the environment, rapidity in traveling speed and heavy density in operation and has been more and more receiving the widespread attention from various countries. The communication system is the cyber platform of the urban transit for operational control, enterprise management and service to the passengers and is the nerve system for the normal operation of the urban transit. The paper elaborates