基于LTE技术的地铁专用无线通信系统的研究  

Research on Dedicated Wireless Communication System for Subway Based on LTE Technology

作　　者：董岳 王磊 DONG Yue;WANG Lei(Jinan Rail Transit Group Co.,Ltd.,Jinan,Shandong 250014,China)

机构地区：[1]济南轨道交通集团有限公司,山东济南250014

出　　处：《自动化应用》2023年第18期18-20,25,共4页Automation Application

摘　　要：常规的无线通信系统的数字信号处理不够灵活,使系统受到地铁外部环境的影响而出现通信干扰问题。为此,设计了基于LTE技术的地铁专用无线通信系统。硬件方面,设计了集线器与PCM解调器;软件方面,基于LTE技术建立了地铁专用无线通信功能架构,确保地铁在单点故障时仍能进行通信业务传输;设计地铁专用无线通信抗干扰算法,屏蔽基站发出的电磁波干扰信号,保障地铁专线正常通信。采用系统测试的方式验证了该系统的性能更佳,能应用于实际生活。The conventional wireless communi cation system′s digital signal processing is not flexible enough,causing the system to be affected by the external environment of the subway,resulting in communication interference issues,therefore,this paper designs a subway dedicated wireless communication system based on LTE technology.In terms of hardware,a hub and PCM demodulator were designed,in terms of software,based on LTE technology,establish a dedicated wireless communication functional architecture for the subway,ensuring that the subway can still transmit communication services in the event of a single point of failure.Design a dedicated wireless communication anti-interference algorithm for subways to shield electromagnetic interference signals emitted by base stations and ensure normal communication of subway dedicated lines.Through system testing,it has been verified that the system has better performance and can be applied in practical life.

关 键 词：LTE技术 地铁专用无线通信 抗干扰 

分 类 号：U285.21[交通运输工程—交通信息工程及控制]