交通运输系统工程与信息

交通运输系统工程与信息 ›› 2005, Vol. 5 ›› Issue (3): 56-60 .

• 信息科学与通信工程 • 上一篇    下一篇

铁路无线信道模型的建立及应用

蒋秋华1，沈海燕2，史天运2，蔡晓蕾2   

  1. 1.北京邮电大学电信工程学院，北京100876; 2.铁道科学研究院电子计算技术研究所，北京100081
  • 收稿日期:2004-12-28 修回日期:1900-01-01 出版日期:2005-06-20 发布日期:2005-06-20

Modeling and Application of the Railway Wireless Channel

JIANG Qiu-hua1，SHEN Hai-yan2，SHI Tian-yun2，CAI Xiao-lei2   

  1. 1. College of Telecommunication Engineering, Beijing Youdian University, Beijing 100876, China;
    2. Institute of Computing Technologies, China Academy of Railway Sciences，Beijing 100081，China
  • Received:2004-12-28 Revised:1900-01-01 Online:2005-06-20 Published:2005-06-20

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被引次数

25

摘要： 综合考虑了阴影衰落、瑞利衰落、多普勒效应、多径效应等因素，针对现有无线信道模型的不足，提出了一种新的铁路无线信道模型，并应用matlab仿真软件进行了仿真.通过对信号包络和频谱的仿真结果分析，与模型的参数是非常吻合的，从而说明了模型的有效性.

关键词: 铁路无线信道, 瑞利衰落, 信道模型, 移动通信, 无线电波

Abstract: An innovative mobile radio channel model is proposed by integrating many factors such as shadowed fading, Rayleigh fading, doppler frequency shift，multipath fading and so on. The paper makes an simulation on the model by using matlab software. The simulation results of signal envelope and spectrum coincide with the parameters of the model. So it can be concluded that the model is effective.

Key words: railway wireless channel, rayleigh decline, channel model, mobile communication, wireless wave