不同湿度城市气溶胶对紫外光通信性能分析  

Performance analysis of urban aerosols with different humidity on ultraviolet communications

作　　者：赵太飞[1,2] 段钰桢 吕鑫喆 ZHAO Taifei;DUAN Yuzhen;LV Xinzhe(Faculty of Automation and Information Engineering,Xi’an University of Technology,Xi’an 710048,China;Shaanxi Civil-military Integration Key Laboratory of Intelligence Collaborative Networks,Xi’an 710000,China)

机构地区：[1]西安理工大学自动化与信息工程学院,西安710048 [2]陕西省智能协同网络军民共建重点实验室,西安710000

出　　处：《激光杂志》2020年第5期1-6,共6页Laser Journal

基　　金：国家自然科学基金(No.61971345);陕西省教育厅服务地方专项计划项目(No.17JF024);陕西省重点产业链创新计划项目(No.2017ZDCXL-GY-06-01);西安市科学计划项目(No.CXY1835(4));西安市碑林区科技计划项目(No.GX1921)。

摘　　要：使用组成城市气溶胶的基本气溶胶类型,构建了受到工业污染的城市气溶胶模型,并采用米散射计算了城市气溶胶的消光系数、散射系数和吸收系数。使用公式法对日盲紫外光直视和非直视通信模型的通信性能进行仿真分析,同时使用蒙特卡洛方法,对紫外光非直视信道的仿真结果进一步进行结果验证。仿真结果显示,相对湿度的增加对紫外光直视通信性能影响较小,但对于紫外光非直视通信来说,相对湿度增加可以改善紫外光非直视通信性能。对不同通信方式和不同相对湿度的仿真结果为日盲紫外光在大气环境中的散射通信提供了理论基础。The urban aerosol model was constructed using the basic aerosol types that make up urban aerosol,and the extinction coefficient,scattering coefficient,and absorption coefficient of the urban aerosol were calculated using Mie scattering.The formula method was used to simulate and analyze the communication performance of solar blind UV LOS(line-of-sight)and NLOS(non-line-of-sight)communication models,and the Monte Carlo method was used to further verify the simulation results of the ultraviolet NLOS communication channel.The simulation results show that the increase of relative humidity has a small effect on the performance of UV LOS communication.But for UV NLOS communication,the increase of relative humidity can improve the performance of UV NLOS communication.The simulation results of different communication models and different relative humidity provide a theoretical basis for scattering communication of solar blind ultraviolet light in atmospheric environment.

关 键 词：紫外光 城市气溶胶 湿度 米散射 蒙特卡洛法 

分 类 号：TN929.12[电子电信—通信与信息系统]