摘要
在高速铁路环境下,无线信道的性能发生急剧的变化。针对高速环境下电波传播的特点,阐述了高速铁路中无线信道的特点并对无线信道进行了建模,分析了高速铁路中多普勒频移的特性及对误码率的影响,讨论了隧道传播环境,最后对无线传输的可靠性进行了分析。
Under the environment of high-speed railway, the performance of wireless channel would change dramatically. As for the characteristics of the propagation of radio wave, this paper proposed a model of wireless channel in high-speed railway, analyzed the characteristics and effects of Doppler shift on BER, discussed the propagation environment in tunnel, and finally analyzed the reliability of wireless data transmission.
出处
《铁道通信信号》
2007年第4期54-56,共3页
Railway Signalling & Communication
关键词
高速铁路
信道建模
多普勒频移
隧道
可靠性
High speed railway, Channel modeling, Doppler shift, Tunnel, Reliability
