摘要
信道模型是无线通信系统设计的基础,本文描述了宽带卫星移动信道的统计特性,分析了S频道基于幅度变化的抽头延迟线信道模型,对其特性进行了仿真,并与德国航空太空中心的农村、郊区、城市不同环境下实测数据统计特性进行对比,结果表明文章中的信道模型特性与真实宽带卫星移动传输环境的实测信道统计特性基本吻合,这对于解决未来宽带移动卫星移动信道模拟和通信系统设计具有重要的现实意义。
Wireless communication systems are designed based on the channel models they employ. Statistic characteristics of broadband satellite mobile channel are described in this paper. The tap- delay line channel model based on the changes of magnitude is explicitly analyzed. After that simu- lation results on the channel model are compared with measured data of Deutsches Zentrum fur Luft - und Raurnfahrt on different environments such as the rural, the suburbs, the urban. The results show that characteristics of the channel model proposed are agreed with statistical characteristics of the real broadband satellite mobile transmission environments, which has important practical signifi- cance on solving the issues of the future broadband mobile satellite mobile channel simulation and the design of satellite communication systems.
出处
《无线通信技术》
2013年第2期6-10,14,共6页
Wireless Communication Technology
基金
国家高新技术研究发展计划(863计划)资助(2012AA01A505)
关键词
宽带卫星移动信道
多径衰落
信道模型
broadband satellite mobile communication
multipath fading
channel model
