摘要
提出了2种不同的、基于频谱仪的测试方法,用于实现在较宽的频率范围内对CTCS-3级列控系统无线通信信道中等尺度衰落及小尺度衰落特性的测量。通过对现场测试数据的分析,初步得到了高速列车无线信道电波传播中等尺度及小尺度衰落特性的相关结论。还提出了在实验室搭建仿真测试平台用于模拟地面高速移动信道的方法。
To understand the radio wave propagation characteristics of CTCS-3 wireless control system used in high speed test trains,two different measurement methods based on spectrum analyzer,which are used to measure the medium scale fading and the small scale fading of high speed mobile wireless channel on a wide frequency band,were firstly presented in this paper.Based on the analysis of site measurement data,preliminary conclusions about the fading characteristics of terrestrial high speed mobile wireless channel were obtained.A simulation platform for terrestrial high speed mobile channel was also given in this paper.
出处
《铁道通信信号》
2010年第9期1-4,共4页
Railway Signalling & Communication
关键词
高速铁路
无线信道
中等尺度衰落
小尺度衰落
High speed railway
Wireless channel
Medium scale fading
Small scale fading
