摘要
系统描述了地铁Wi Fi系统设计、建设及优化整改过程中遇到的系统间干扰等问题,详细阐述了基于通信的列车控制(CBTC)系统采用的信道切换、窄带压缩及锁频等防干扰措施,通过地铁Wi Fi系统预估用户模型及业务模型计算出地铁Wi Fi车地无线传输系统的宽带需求,并分析了车地无线传输系统的频段选择,可为地铁Wi Fi系统的建设提供参考。
Abstract The issues of inter-system interference encoun- tered in metro WiFi system design and implementation phase are described, the corresponding anti - inteference measures based on CBTC are explained in detail, including channel switching, narrow-band compression and screen lock. The broadband requirements for metro WiFi trans- mission is calculated by analyzing the estimated user model and business model of WiFi system, the selection of train/ ground wireless communication spectrum could provide ref- erence for the construction of metro WiFi sestem.
出处
《城市轨道交通研究》
北大核心
2016年第6期86-89,共4页
Urban Mass Transit
关键词
城市轨道交通
无线局域网
车地无线传输
通信安全
urban rail transit
wireless fidelity （WiFi）
train/ground wireless communication
communication salty
