传感技术学报2024，Vol.37Issue(9)：1535-1544,10.DOI:10.3969/j.issn.1004-1699.2024.09.010
多维信息感知地标匹配的PDR定位算法
PDR Positioning Algorithm Based Multi-Dimensional Information Perception Landmark Matching
摘要
Abstract
Targeting at the cumulative error problem of pedestrian dead reckoning(PDR)indoor positioning system,a PDR positioning algorithm based multi-dimensional information perception landmark matching(MIPLM)is proposed.Based on the crowdsourced tracks of pedestrians in the indoor corridor environment and the prominent intersection structure,the multi-dimensional information perception landmark database is constructed from the aspects of location,heading,influence area and WiFi feature fingerprint.The proposed adap-tive landmark detection algorithm,combined with the trajectory similarity model of heading constraint,updates the pedestrian position and heading,which avoids the strong dependence on spatial position in the localization matching process.The experimental results show that,compared with other landmark construction and matching algorithms,the proposed algorithm can better reflect the correlation between pedestrian activity and indoor spatial structure.Moreover,when the initial location is unknown,the proposed algorithm can rapidly converge and provide higher positioning accuracy,which has a higher application value for the continuous positioning of indoor pedestrians.关键词
室内定位/行人航位推算/多维信息感知/地标匹配/轨迹相似度Key words
indoor localization/pedestrian dead reckoning/multi-dimensional information perception/landmark matching/trajectory similarity分类
信息技术与安全科学引用本文复制引用
李栋,秦宁宁..多维信息感知地标匹配的PDR定位算法[J].传感技术学报,2024,37(9):1535-1544,10.基金项目
国家自然科学基金项目(61702228) （61702228）
江苏省自然基金项目(BK20170198) （BK20170198）
