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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。
The channel model is the basis of the design of wireless communication system. This paper describes the statistical characteristics of broadband satellite mobile channel, analyzes the SS channel model of tapped delay line based on amplitude variation, simulates its characteristics and compares it with the rural areas of German Aerospace Center , Suburbs and cities under different environments. The results show that the characteristics of the channel model in the article are in good agreement with the measured channel statistics of the real broadband satellite mobile transmission environment, which is of great value in solving the problems of the mobile satellite channel simulation and communication system Design has important practical significance.