列车运行控制系统车地无线通信的频段选择

摘要

Based on radio CBTC(communication-based train control) system, it is important to choose a proper frequency band in order to fully support the train-ground communication. The technical characteristics of different frequency bands, the interference characteristics, the mobility performance and safety performance are analyzed, some suggestions on frequency band selection for radio CBTC system are proposed.%车地无线通信是基于通信的列车控制(CBTC)系统的基础,而合适的频段选择是车地无线通信系统的基础.分析了不同通信频段的频段特性、干扰特性、移动性能和安全性能,对CBTC系统中车地通信的频段选择给出了具体建议.802.11g和802.11a标准更加适合于城市轨道交通.