光通信技术2024，Vol.48Issue(6)：6-10,5.DOI:10.13921/j.cnki.issn1002-5561.2024.06.002
无线光通信中雨滴末速度对散射光频谱的影响研究
Research on the influence of the raindrop terminal velocity on the spectrum of scattered light in wireless optical communication
摘要
Abstract
In order to explore the impact of atmospheric disturbances on the performance of wireless optical communication(WOC)systems,the Mie scattering model is used to deeply analyze the attenuation of scattered light in rain.First,the correla-tion function of the raindrop terminal velocity fluctuations is solved,and then the Wiener-Khinchin theorem is applied to calcu-late the power spectrum of the scattered light.A method combining Marshall-Palmer distribution with multiple raindrop terminal velocity models is creatively proposed to reveal the specific impact of raindrop terminal velocity on the received light intensity spectrum.The simulation results show that,under the same distribution of raindrop terminal velocity,as the rainfall rate increases,the attenuation of the scattered light spectrum of the four raindrop terminal velocity models also increases,but the shape of the spectrum remains basically unchanged,the attenuation of the beacon light with a wavelength of 532 nm is about 1 dB more than that of the signal light with a wavelength of 1 550 nm.关键词
无线光通信/米氏散射/雨滴谱/末速度/雨衰Key words
wireless optical communications/Mie scattering/drop size distribution/terminal velocity/rainfall attenuation分类
信息技术与安全科学引用本文复制引用
徐林,黄富良,解孟其,王鹏,王琛..无线光通信中雨滴末速度对散射光频谱的影响研究[J].光通信技术,2024,48(6):6-10,5.基金项目
陕西省教育厅科研自然专项(20JK0679)资助. （20JK0679）
