基于漏缆传输的CBTC无线通信系统试验  

Experiment of Leaky Coaxial Cable Transmission in CBTC Wireless Communication System

作　　者：张楠[1] 朱翔[2] 纪文莉 张志平[2] 郑国莘[1] 

机构地区：[1]上海大学特种光纤与光接入网省部共建重点实验室,上海硕士研究生200072 [2]上海申通地铁集团有限公司技术中心,上海201103

出　　处：《城市轨道交通研究》2015年第12期104-108,共5页Urban Mass Transit

基　　金：国家自然科学基金项目(61132003;61171086);上海市科学技术委员会重大项目(13511503000)

摘　　要：城市轨道交通CBTC(基于通信的列车控制)系统运行于WLAN2.4 GHz公共频段,存在同频干扰问题。车地无线通信系统依据"专频、专网、低频段"思路设计,能有效避免同频干扰。试验所用的CBTC无线通信系统采用基于漏缆传输技术的400 MHz新型系统结构。同时,根据真实的CBTC信号流,设计出CBTC信号仿真平台。试验结果表明,这种基于漏缆传输的区间无有源设备方案具有高可靠性和实用性。Urban rail transit CBTC is running on the WLAN 2.4 GHz public band, but the same frequency in- terference needs to be solved. On the basis of ＂dedicated frequency, dedicated net and low band＂ principle, a train/ ground wireless communication system is designed to solve this potential security problem. The CBTC wireless com- munication system in the test adopts an innovative system structure of leaky coaxial cable transmission, which runs at 400 MHz frequency band. According to the real signal stream of CBTC system, a simulation platform of CBTC signal system is set up. The experiment results show that the scheme of transmission based on leaky coaxial cable and regular interval without active devices has higher reliability and practicability.

关 键 词：关键词城市轨道交通 基于通信的列车控制 车地无线通信 漏缆传输 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]