无线紫外光通信干扰链路性能研究  

Research on Performance of Wireless Ultraviolet Communication Interference Link

作　　者：赵太飞[1,2] 马倩文 赵毅 Zhao Taifei;Ma Qianwen;Zhao Yi(School of Automation and Information Engineering,Xi’an University of Technology,Xi’an 710048,Shaanxi,China;Key Laboratory of MilitaryCivilian Joint Construction of Intelligent Collaborative Network of Shaanxi Province,Xi’an 710000,Shaanxi,China)

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

出　　处：《激光与光电子学进展》2023年第9期423-429,共7页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61971345);陕西省重点研发计划一般项目(2021GY044);榆林市科技计划项目(2019-145);西安市碑林区科技计划项目(GX1921)。

摘　　要：日盲无线紫外光系统进行通信时,若同时存在多条工作链路,则同时工作的链路会在空间中发生有效散射体的重叠,造成不同通信链路之间互相干扰,影响通信性能。本文针对典型的干扰模型建立了基于蒙特卡罗方法的无线紫外光非直视通信散射信道仿真实验,验证了该模型的正确性。并利用该模型仿真了无线紫外光通信中所存在的共面干扰、非共面干扰以及非共面且存在高度差干扰下的链路干扰模型。结果表明:影响信道误码率的因素主要有干扰端的位置以及有效散射体体积的大小;在非共面且存在高度差的干扰情况下,可以通过调整发射端仰角的大小减小链路间干扰,提高通信系统的性能。When solarblind wireless ultraviolet light system is used to communicate,if multiple links are active at once,the active links will overlap with effective scatters in space,resulting in mutual interference and a reduction in communication performance.This study develops a method for simulating the wireless ultraviolet nonlineofsight communication scattering channel and validates the model’s accuracy by comparing it to a common interference model.And this model is used to simulate the coplanar interference,noncoplanar interference,and the link interference model under noncoplanar and height difference interference in wireless ultraviolet communication.The results show that the main factors affecting the bit error rate of the channel are the location of the interference terminal and the size of the effective scatterer,in the case of noncoplanar and height difference interference,the interlink interference can be reduced by adjusting the transmitter elevation angle,and the performance of the communication system can be improved.

关 键 词：散射 日盲紫外光 蒙特卡罗模型 链路干扰 非直视通信 

分 类 号：O436[机械工程—光学工程]