摘要
陆地集群无线电(TETRA)是无线集群通信系统的首选制式,与城市轨道交通列车行驶安全及地铁高效运营密切相关。本文首先分析了无线集群通信系统的研究现状;其次介绍了TETRA的网络结构及系统功能;结合TETRA系统功能需求,从基站配置、换乘站无线系统覆盖、信号覆盖、系统同步等方面讨论了TETRA在城市轨道交通中的具体应用。
Terrestrial trunked radio is the preferred system for wireless trunked communication systems, which is closely related to the safety of urban rail transit trains and the efficient operation of subways. Firstly, the research status of wireless trunking communication system is analyzed. Secondly, the network structure and system functional requirements of TETRA are introduced. Combined with the functional requirements of TETRA system, the specific application of TETRA in urban rail transit is discussed from the aspects of base station configuration, transfer station wireless system coverage, signal coverage, system synchronization, etc.
作者
李艳芳
LI Yan-fang(Xi’an University Of Science And Technology,Xi’an 710000 China)
出处
《自动化技术与应用》
2019年第12期75-77,149,共4页
Techniques of Automation and Applications
关键词
陆地集群无线电
城市轨道交通
数字集群
无线通信
terrestrial trunked radio
urban rail transit
digital trunking
wireless communication
