发光学报2023，Vol.44Issue(12)：2277-2286,10.DOI:10.37188/CJL.20230223
可见光通信中无人机搜寻通信光源的优化方法
Optimization Methods for UAVs to Search Light Source in VLC
摘要
Abstract
We proposed a method to solve the problem of inaccurate positioning for unmanned aerial vehicles(UAVs)in visible-light communication(VLC).To sense the light source and find the optimum position for commu-nication,the proposed method expands the search path first and then regularly narrows the search path.In order to improve the success rate(η)of this method,we analyzed the influence of light distribution of the light source on η and the searching distance,and also studied the influence of the position and the receiving angle of the photodetector on the receiving power and η.Three-dimensional(3D)coverage range of the light source,which is determined by the Lambert coefficient and the threshold optical power that can be sensed by the photodetector,is obtained to esti-mate η of UAV under different circumstances.Taking the searching path of the equilateral hexagonal for example,η can reaches up to 0.74 with the covering radius of the light source of 0.78 m by using idea Lambert-distributed light source.The proposed method avoids the inaccurate positioning of UAV,which causes the problem for the UAV to find the communication position in VLC.We theoretically proposed a solution to improve η by light-emission design-ing and path optimizing,providing the solution for UAVs to realize VLC.关键词
可见光通信/无人机/光分布/优化方法Key words
visible light communication/unmanned aerial vehicles/light distribution/optimization method分类
信息技术与安全科学引用本文复制引用
肖华,王艳菊,王湛朗,郭闯,姜淏予..可见光通信中无人机搜寻通信光源的优化方法[J].发光学报,2023,44(12):2277-2286,10.基金项目
国家自然科学基金(62304054) （62304054）
广东省教育厅青年创新人才项目(2020KQCX026) （2020KQCX026）
广东省教育厅特色创新项目(2022KTSCX050) （2022KTSCX050）
湛江市海洋青年人才创新项目(2022E05003) （2022E05003）
广东海洋大学科研启动经费资助项目(060302112101)Supported by National Natural Science Foundation of China(62304054) （060302112101）
Youth Talent Program by Education Department of Guangdong Province(2020KQCX026) （2020KQCX026）
Characteristic Innovation Program of The Education Department of Guangdong Province(2022KTSCX050) （2022KTSCX050）
Marine Young Talent Innovation Program of Zhanjiang City(2022E05003) （2022E05003）
Program for Scientific Re-search Start-up Funds of Guangdong Ocean University(060302112101) （060302112101）
