城市轨道交通车地无线通信系统性能评估平台的研究与实现

Research and Implementation of Performance Evaluation Platform for Urban Rail Transit Vehicle Ground Wireless Communication System

为了评估城市轨道交通车地无线通信系统的性能,通过分析城市轨道交通无线环境特点,利用半实物仿真,模拟无线传输信道,结合干扰信号源模拟不同的干扰环境,设计实现了一个城市轨道交通车地无线通信系统性能评估平台;通过该平台,可对车地无线通信系统处于不同干扰场景或者不同切换频率的场景下进行性能评估;同时,该系统能够直接应用于基于CBTC的城市轨道交通线路,评估其车地无线通信系统的性能。

In order to evaluate the performance of the train-ground wireless communication system of urban rail transit,this paper analyzed the characteristics of urban rail transit wireless environment,using hardware-in-the-loop combining with interference signal source to simulate different interference environment.Therefore,an evaluation platform with interference scenarios or different handover frequency for evaluating the performance of the train-ground wireless communication system is designed and implemented.At the same time,the system can be directly applied to CBTC based urban rail transit train-ground wireless communication system to evaluate the performance.