同频同调制信号的瑞利信道系统仿真设计Simulation design of Rayleigh channel system for signals with same carrier frequency and modulation
彭秋明,谭北海,李卫军,赵龙
摘要(Abstract):
为了解决通信系统仿真模型的不完备性,利用Matlab的组件Simulink搭建了一套模拟信号的传输、接收、分离的接收机通信仿真模型。该模型以同频同调制信号为信源,选取多径瑞利衰落信道模拟仿真实际接收机的工作流程,并且包括信源模块、调制解调模块、信道模块、模拟接收模块、采样滤波模块、信号分离模块等。此外,系统测试了瑞利信道的路径增益对信号盲分离的影响,仿真结果表明信道增益越大,信号越集中,分离效果也相对较好。因此,该仿真系统可以与硬件系统原型相结合,为测试信号提供功能验证,为实际接收机系统运行环境提供参考建议。
关键词(KeyWords): Simulink;瑞利信道;仿真模型;盲分离;系统仿真;模拟信号
基金项目(Foundation): 国家自然科学基金资助项目(61203117)~~
作者(Author): 彭秋明,谭北海,李卫军,赵龙
DOI: 10.16652/j.issn.1004-373x.2018.05.003
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