浮尘天气条件下无线紫外光通信的传输特性  

Transmission characteristics of wireless ultraviolet communication in floating dust weather

作　　者：宋鹏[1] 马守领 张国青[2] 郭华 张利剑 SONG Peng;MA Shouling;ZHANG Guoqing;GUO Hua;ZHANG Lijian(School of Electronic and Information, Xi’an Polytechnic University, Xi’an 710048, China;School of Science, Xi’an Polytechnic University, Xi’an 710048, China)

机构地区：[1]西安工程大学电子信息学院,陕西西安710048 [2]西安工程大学理学院,陕西西安710048

出　　处：《西安工程大学学报》2022年第1期94-100,107,共8页Journal of Xi’an Polytechnic University

基　　金：国家自然科学基金(61971345,11975176);陕西省教育厅专项科研计划项目(19JK0361)。

摘　　要：基于浮尘的粒子谱,采用Mie散射理论分析浮尘粒子各粒径下的散射效率因子和散射系数;采用蒙特卡罗方法模拟分析浮尘天气时浮尘粒径及浓度对紫外光通信的影响;搭建实验装置,测试不同浮尘天气下浮尘粒径及浓度对紫外光通信性能的影响,并与仿真结果进行了对比。结果表明:1)浮尘粒子的散射效率因子和消光效率因子呈现振荡衰减趋势,且随着尺度参数的增大最终分别振荡收敛于2.07和1.14附近;2)当浮尘浓度一定时,紫外光通信的路径损耗随粒径的增大呈先减小后增大的趋势,出现极小值的半径范围在1.0~1.5μm之间;3)浮尘天气中,紫外光短距离通信时,路径损耗随着浮尘浓度的增加而降低,随通信距离和收发仰角的增大而增加。Based on the particle spectrum of floating dust,with the analysis of the scattering efficiency factor and scattering coefficient of floating dust particle size by Mie scattering theory;Monte Carlo method was used to simulate and analyze the effect of floating dust particle size and concentration on UV communication in floating dust weather.Finally,an experimental device was built to test and analyze the effects of particle size and concentration on UV communication performance in different floating dust weather,the results of which were then contrasted with the simulation ones.The results show that:1)the scattering efficiency factor and extinction efficiency factor of floating dust particles show an oscillatory attenuation trend,and the oscillation finally converges near 2.07 and 1.14 with the increase of scale parameters,respectively.2)When the floating dust concentration is constant,the path loss of UV communication decreases first and then increases with the increase of particle size,and the radius of the minimum is 1.0~1.5μm.3)During short distance communication in dusty weather,the path loss decreases with the increase of dust concentration and increases with the increase of communication distance and transceiver elevation.

关 键 词：紫外光通信 浮尘气溶胶 粒子谱 MIE散射 散射效率因子 散射系数 

分 类 号：TN929.12[电子电信—通信与信息系统]