高速铁路环境下利用无线通信实现铁路信号信息传输的初探

Discussion on the Transmission of Railway Signal Information Through Wireless Communication in High Speed Railway

无线列控中首先要考虑的是无线传输的可靠性 ,特别是在高速情况下 ,无线传输误码率能否满足列车控制的要求 .基于这一点 ,本文指出了铁路环境下无线信道的特性 ,建立了信道模型 ,分析高速铁路环境下无线传输误码率 ,并给出了相应的改进措施 .

In wireless train control system, the thing must be thought firstly is the reliability of wireless transmission. Does the error rate meet the requirement of train control especially in the case of high speed? This paper gives the characteristic of wireless channel in railway environment, sets up the channel mode, analyses the transmission error rate in high speed railway environment, comes to the conclusion that the error rate of general GSM can not satisfy the demand of train control. This paper also gives the improvement measure based on the particularity of railway circumstance.