机舱内部超宽带无线信道参数仿真  

Calculation of Ultra Wideband Channel Parameters in Aircraft Cabin

作　　者：吴庆[1] 王彤[1] 屠晓杰[1] 刘晓敏[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191

出　　处：《计算机仿真》2014年第12期49-53,58,共6页Computer Simulation

基　　金：国家自然科学基金(61273012)

摘　　要：在机舱无线信道传输特性优化问题的研究中,将超宽带无线通信系统应用到机舱环境中,首先需要对机舱无线信道参数特性进行研究,优化信道模型参数。针对机舱环境,采用射线追踪的软件仿真方法来模拟超宽带信号在机舱内部的传播路径,计算信道模型参数。提出采用接收球的反射角误差法,通过信号传播距离、入射角度、反射角度之间的数学关系,来追踪信号传播路径。建立ARJ21机舱内部模型仿真信号传播路径,对仿真数据进行统计分析,得到信道特性参数:簇到达率、簇衰减常数、径衰减常数,以及均方根时延扩展,优化信道特性参数,可为机舱内部信号传输提供参考。The characteristics of channel parameters in cabin should be researched when the ultra - wideband wireless communication system is applied to the cabin environment. The channel parameters of the channel model were calculated by simulating the ultra - wideband signal propagation in cabin with the method of ray - tracing. A method of reflection angle error based on receiving ball was presented which can trace the signal propagation path with the mathematical relationship between propagation distance,incidence angle and reflection angle. A model of ARJ21 was established by simulation software in which the ultra -wideband signal propagation was traced. The simulation data are analyzed and the results show that the channel model is optimized through the channel parameters of cluster arrival rate,ray decay constant, cluster decay constant, and RMS delay spread.

关 键 词：超宽带 射线追踪 信道模型 电磁波传播 机舱 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]