降雪环境太赫兹信道测量与建模  

Terahertz Channel Measurement and Modeling in Snowfall Environments

作　　者：刘国昊 赵家标 李达 梁宏[3] Daniel M.Mittleman 马建军[1,2] 孙厚军[1,2] LIU Guohao;ZHAO Jiabiao;LI Da;LIANG Hong;MITTLEMAN D M;MA Jianjun;SUN Houjun(Beijing Institute of Technology,School of Integrated Circuits and Electronics,Beijing 100081,China;Tangshan Research Institute,BIT,Tangshan,Hebei 063099,China;Meteorological Observation Center of China,Beijing 100081,China;School of Engineering,Brown University,Providence RI,02912 USA)

机构地区：[1]北京理工大学集成电路与电子学院,北京100081 [2]北京理工大学唐山研究院,唐山063099 [3]中国气象局,北京063099 [4]布朗大学工程学院,普罗维登斯罗得岛州02912

出　　处：《微波学报》2024年第S1期350-353,共4页Journal of Microwaves

基　　金：国家自然科学基金(62071046)

摘　　要：在无线通信领域中,太赫兹频段(0.1~10THz)因其大容量,超高速的数据传输特点备受关注。太赫兹无线通信的有效部署需要对各种复杂环境下信道特性进行研究,如云、雨、雾、雪环境。这些因素对物理层的信号处理和整体的布局具有至关重要的影响。本文对降雪环境下的太赫兹视距信道特性进行了全面的测量以及理论的分析,研究了理论和实际情况下能量衰减特性。我们的研究结果表明,雪况不仅会产生功率损耗,还会引起太赫兹通道功率水平的快速波动。值得注意的是,研究结果显示,在这些场景中没有明显的多径效应。这一见解凸显了进一步研究雪花运动动力学及其与太赫兹传输路径相互作用的必要性。In the field of wireless communication,the terahertz frequency band(0.1 to 10THz)has attracted much attention due to its large capacity and ultra-high-speed data transmission characteristics.The effective deployment of terahertz wireless communication requires the study of channel characteristics in various complex environments,such as cloud,rain,fog,and snow environments.These factors have a crucial impact on the signal processing and overall layout of the physical layer.In this paper,the terahertz line-of-sight channel characteristics in snowfall environment are comprehensively measured and analyzed theoretically,the energy attenuation characteristics under theoretical and practical conditions are studied.Our findings demonstrate that snowy conditions not only exert power loss but also induce rapid fluctuations in the power levels of the THz channel.Notably,our results reveal an absence of significant multipath effects in these scenarios.This insight highlights the need for further research into the dynamics of snowflake movement and their interaction with THz transmission paths.

关 键 词：太赫兹无线信道 降雪条件 能量衰减 

分 类 号：TN929.5[电子电信—通信与信息系统]