光通信技术2025，Vol.49Issue(5)：34-39,6.DOI:10.13921/j.cnki.issn1002-5561.2025.05.006
基于改进PSO与加权质心融合的室内可见光定位方法研究
Research on indoor visible light positioning method based on improved PSO and weighted centroid fusion
摘要
Abstract
To improve the positioning accuracy of indoor visible light,an indoor visible light positioning method combining an improved particle swarm optimization(PSO)with weighted centroid fusion is proposed.First,the improved PSO algorithm is employed to optimize the emission angle of light-emitting diodes(LEDs)to determine the optimal semi-angle parameter.Sec-ond,channel gain is utilized as a metric for received signal strength indication(RSSI),and an RSSI-based weighted centroid method is applied for positioning.Finally,the initial weighted centroid estimate is refined using a distance-weighted method to reduce positioning error.Simulation results show that the proposed method achieves a positioning error of less than 5.0 cm at 89%of test points,with an average positioning error of approximately 3.6 cm.关键词
粒子群优化/可见光定位/信道增益/接收信号强度指示/加权质心定位法/距离加权定位法Key words
particle swarm optimization/visible light positioning/channel gain/received signal strength indication/weighted centroid positioning method/distance-weighted positioning method分类
信息技术与安全科学引用本文复制引用
贺军义,刘子怡,张敏,吕梦强,彭威硕..基于改进PSO与加权质心融合的室内可见光定位方法研究[J].光通信技术,2025,49(5):34-39,6.基金项目
国家自然科学基金项目(61872126、61772159)资助 （61872126、61772159）
河南省科技攻关项目(242102210185)资助 （242102210185）
河南省高校重点研究基金项目(20A520015)资助 （20A520015）
河南理工大学博士基金项目(60907023)资助. （60907023）
