数字光纤直放站在铁路通信中的应用  

Application of Digital Optical Fiber Repeaters in Railway Communication

作　　者：高建平 Gao Jianping(CRSC Research&Design Institute Group Co.,Ltd.,Beijing 100070,China)

机构地区：[1]北京全路通信信号研究设计院集团有限公司,北京100070

出　　处：《铁路通信信号工程技术》2022年第7期54-57,共4页Railway Signalling & Communication Engineering

基　　金：北京全路通信信号研究设计院集团有限公司科研项目(2300-K2220006)。

摘　　要：介绍数字光纤直放站系统的构成、应用特点,比对数字光纤直放站与分布式基站的应用差别;重点阐述目前直放站在铁路应用中产生的问题,通过分析数字直放站设备特性及覆盖方式,提出在特定场景调整直放站设置参数降低由于时延问题对铁路通信影响的解决方案,为数字直放站高速场景的参数设置、GSM-R系统的应用安全提供理论依据。This paper introduces the composition and application characteristics of the digital optical fi ber repeater system,compares the application diff erences between the digital optical fi ber repeaters and the distributed base stations,and emphasizes the problems arising from the application of such repeaters in railways.Based on the characteristics and coverage modes of such repeaters,a solution is proposed to reduce the infl uence of time delay on railway communication by adjusting the setting parameters of the repeaters in a specifi c scenario.This paper provides a theoretical basis for setting the parameters of these repeaters in high-speed scenarios and for the security of the application of GSM-R system.

关 键 词：高速铁路 数字光纤直放站 传输时延 现场可编程门阵列 

分 类 号：U285[交通运输工程—交通信息工程及控制]