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移动信道是移动通信中的关键内容,关联信息论与编码、信号与系统、数字信号处理以及移动通信等课程,从抽象到具体。然而关于移动信道模型以及相关概念的分析和教学一直是难点,本文从信号与系统中的相关概念入手,由浅入深,详细地分析了移动信道模型及其相关概念,使抽象的问题变得浅显简单,又不失严格的数学模型表示。同时,分析了影响移动信道特征的最主要的因素以及信道衰落的特征。
Mobile channel is the key content in mobile communication, related information theory and coding, signal and system, digital signal processing and mobile communication courses, from abstract to concrete. However, the analysis and teaching of the mobile channel model and related concepts have been difficult. Starting with the related concepts in signal and system, this paper analyzes the mobile channel model and its related concepts in detail and makes the abstract problem simple Simple, without losing the strict mathematical model. At the same time, the main factors influencing the characteristics of mobile channel and the characteristics of channel fading are analyzed.