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针对无线通信中的电磁衰落问题,采用基于统计学理论的新方法在混响室中模拟了常见的电磁衰落环境。通过混合搅拌在混响室中得到大量独立采样点,利用统计学方法对这些样本进行筛选,使得筛选出的独立采样点的概率密度函数服从各种概率统计分布,选取相同位置的采样点来实现各种电磁衰落环境的模拟。通过拟合优度检验方法——K-S检验和分位图验证,该方法在混响室内成功模拟了瑞利分布和莱斯分布电磁衰落环境,开拓性地实现了对Nakagami分布、对数正态分布和韦伯分布电磁衰落环境的模拟,为混响室内模拟无线通信中的各种电磁衰落环境提供了普适性的方法。
Abstract：For the problem of electromagnetic(EM) fading in wireless communication, a new method based on statistical theory is used to simulate the common EM fading environments in a reverberation chamber(RC).First, a large number of independent sampling points are obtained in the RC by mixed stirring.Then these samples are selected by statistical methods, so that the probability density function of the selected independent sampling points is subject to various probability statistical distributions.Finally, the simulation of various EM fading environments is realized by selecting sampling points at the same position.Through the goodness of fit test methods-Kolmogorov-Smirnov test(K-S test) and Quantile-Quantile plot verification, the new method successfully simulated Rayleigh distribution and Rician distribution EM fading environments in the RC,and realized the simulation of Nakagami distribution, lognormal distribution and Weibull distribution.This method provides a general method for simulating various EM fading environments in wireless communication in the RC.
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基本信息:
DOI：
中图分类号:TN011
引用信息:
[1]茹梦圆,张雪莹,闫丽萍等.混响室内模拟电磁衰落环境的一种普适性方法[J].无线电工程,2021,51(07):591-597.
基金信息:
国家自然科学基金面上项目(61877041)~~