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基于Matlab的IR-UWB无线通信信道模型仿真

于 2020-12-10 发布
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超宽带通信技术是一种全新的短距离无线通信技术。它利用极窄脉冲传输数据,具有传输速率高、功耗低、抗多径能力强等许多优点,并且由于频谱的功率谱密度极小,它通常具有扩频通信的特点。该技术以其独有的特性正受到通信学术界和产业界乃至军方的重视,并将取得进一步的发展,获得日益广泛的应用。本文首先概括地介绍了超宽带无线通信的基础知识,重点研究TH-UWB信号特点及传播特性,对比超宽带信道模型与窄带无线信道的不同,在此基础上分析路径损耗模型和多径衰落模型对PPM-TH-UWB超宽带信号传输的影响。利用MATLAB仿真分析了PPM-TH-UWB和PAM-TH-UWB信号时域表达式及其功率谱密度(PSD),同时

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