机舱环境5G信道传播模型及信号覆盖研究  

5G Channel Propagation Model and Signal Coverage Inside Aircraft Cabin Scenarios

作　　者：刘宇欣 叶溪涓 鲍军委[2] 马健 陈小敏[1] 李明昇 朱秋明[1] LIU Yuxin;YE Xijuan;BAO Junwei;MA Jian;CHEN Xiaomin;LI Mingsheng;ZHU Qiuming(Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space,Ministry of Industry and Information Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,Jiangsu,China;College of Physics,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,Jiangsu,China;Jincheng Nanjing Engineering Institute of Aircraft System,Aviation Industry Corporation of China,Ltd.,Nanjing 211106,Jiangsu,China;Nanjing Remcom Technology Co.,Ltd.,Nanjing 210019,Jiangsu,China)

机构地区：[1]南京航空航天大学电磁频谱空间认知动态系统工业与信息化部重点实验室,江苏南京211106 [2]南京航空航天大学物理学院,江苏南京211106 [3]中国航空工业集团有限公司金城南京机电液压工程研究中心,江苏南京211106 [4]南京任康科技有限公司,江苏南京210019

出　　处：《应用科学学报》2024年第3期425-436,共12页Journal of Applied Sciences

基　　金：国家重大科研仪器研制项目(No.61827801);江苏省自然科学基金(No.BK20211182);航空科学基金重点项目(No.2020Z073009001);东南大学移动通信国家重点实验室开放研究基金课题(No.2022D04);未来网络科研基金(No.FNSRFP-2021-YB-04)资助。

摘　　要：针对机舱无线通信覆盖不全面、速度慢、不稳定等问题,该文基于射线跟踪方法构建了机舱环境第5代移动通信技术(5th generation mobile communication technology,5G)信道模型,并分析了信号覆盖能力及信道参数特性。首先,利用三角面元对真实的机舱环境进行三维几何重构,以降低射线跟踪方法获取信道参数的复杂度;然后,结合分簇算法构建5G信道传播模型,进而分析了机舱环境下5G信号覆盖和通信性能。仿真分析结果表明,簇功率偏移和簇时延偏移服从高斯分布,簇到达方位角和簇到达俯仰角偏移服从拉普拉斯分布,同时发现,机舱环境中的密集散射体是影响5G信号覆盖范围的关键因素。上述结论可用于机舱环境5G基站的无线通信信号覆盖预测和多径参数评估等领域。In response to challenges encountered in wireless communication within aircraft cabins,including incomplete coverage,slow speeds,and instability,this study presents a 5th generation wireless communication technology(5G)channel model tailored for aircraft cabin scenarios using ray tracing methods.The signal coverage ability and channel parameter characteristics are analyzed.Firstly,we conduct three-dimensional geometric reconstruction of the real cabin scene using triangles to reduce the complexity of obtaining channel parameters by ray tracing.Subsequently,the 5G channel propagation model is constructed by combining the clustering algorithm,then the 5G signal coverage and communication performance inside aircraft cabin are analyzed.Simulation results show that the cluster power offset and the cluster time delay offset follow Gauss distribution,while the cluster azimuth angle of arrival offset and the cluster elevation angle of arrival offset follow Laplace distribution.Moreover,we found that the dense scatterers inside aircraft cabin are the key factors affecting 5G signal coverage.These conclusions can be used in the fields of radio signal coverage prediction and multipath parameter evaluation of 5G base station within aircraft cabin scenarios.

关 键 词：机舱环境 信道模型 射线追踪 信号覆盖 分簇算法 

分 类 号：TN92[电子电信—通信与信息系统]