舰船内部60 GHz毫米波信道特性研究  

Research on Channel Characteristics of 60 GHz Millimeter Wave Propagation inside Ship Cabins

作　　者：丁同禹 王孟于 张谅 DING Tongyu;WANG Mengyu;ZHANG Liang(School of Ocean Information Engineering,Jimei University,Xiamen 361021,China)

机构地区：[1]集美大学海洋信息工程学院电子系,福建厦门361021 [2]集美大学海洋信息工程学院,福建厦门361021

出　　处：《移动通信》2022年第12期62-68,共7页Mobile Communications

基　　金：福建省自然科学基金(2022J01342);集美大学青年拔尖人才项目(ZR2019001)。

摘　　要：为研究船内复杂封闭空间60 GHz毫米波信道特性,建立了等比例船舱模型,并进行相应的仿真研究,针对四种舰船舱室环境模型:T型控制舱、L型起居室、矩形起居室及机械舱,分别研究了各舱室内部60 GHz毫米波信道的时延扩展及路径损耗,建立了简单的舱内路径损耗模型,并发现机械舱环境的损耗斜率明显高于其余三种舱内环境模型,主要由于机械舱内复杂的金属环境对电磁信号造成了大量的反射和散射。在对时延扩展研究中归纳并提取了四种多径信道模型:多径时延分布、多簇时延分布、衰减的指数功率及等功率分布。此四种信道模型在一定程度上表征了船舱环境的信道特性。结合仿真结果及舱室环境,简要论述了实现该舰船内部无线通信的可行性,并提出了船内无线传感网络的节点部署建议。In order to study the characteristics of 60 GHz millimeter wave channel inside complex enclosed ship cabins, a ship cabin model with an equal scale is established and corresponding simulation researches are conducted. For four types of ship cabin environment models: T-shaped control cabin, L-shaped living room, rectangular living room and mechanical cabin, the delay spread and the path loss of 60 GHz millimeter wave channels in each cabin are studied and analyzed respectively, and a simple path loss model in the cabin environment is established. It is found that the path loss slope of the mechanical cabin environment is significantly higher than the other three cabin models, mainly due to the large amount reflections and scattering of electromagnetic signals caused by the complex metal environment in the mechanical cabin. In the research of delay spread, four multipath channel models are summarized and extracted: multipath delay distribution, multi-cluster delay distribution, decaying exponential power and equal power distribution. These four channel models represent the channel characteristics of the ship cabin environment to a certain extent. Based on the simulation results and the cabin environments, the feasibility of realizing wireless communications inside ships are discussed and the node deployment recommendations of wireless sensor network are provided.

关 键 词：毫米波 信道模型 路径损耗 时延扩展 

分 类 号：TN929.5[电子电信—通信与信息系统]