传感技术学报2018，Vol.31Issue(1)：36-42,7.DOI:10.3969/j.issn.1004-1699.2018.01.007
基于地磁指纹和P DR融合的手机室内定位系统
A Fusion Method for PDR and Magnetic Fingerprinting Based Indoor Localization on Smartphone
摘要
Abstract
Due to the problem of fuzzy solution of magnetic field indoors and accumulated error in PDR,this paper presents the fused indoor positioning method,which based on PDR and magnetic to achieve the purpose of real-time correction in PDR systems localization error accumulated by time,taking the advantage of short-term accuracy in PDR to narrow the field of magnetic matching based on the positioning result of PDR,solving the problem of the fuzzy solution in the magnetic fingerprints by particle filter algorithm. Compared with the traditional PDR,the pro-posed method improves the detecting accuracy of the stride frequency, which applies autocorrelation method to detect the pedestrian stride frequency in different gait. Through a series of experiments and tests,the results show that the proposed technique in this paper can effectively achieve 2 meters precision in a large building.关键词
室内定位/行人航迹推算/地磁匹配/地磁导航/粒子滤波Key words
indoor positioning/pedestrian dead reckoning/magnetic matching/magnetic navigation/particle filter分类
信息技术与安全科学引用本文复制引用
李思民,蔡成林,王亚娜,邱云翔,黄艳虎..基于地磁指纹和P DR融合的手机室内定位系统[J].传感技术学报,2018,31(1):36-42,7.基金项目
项目来源:广西重点研发计划项目(桂科AB17129028) （桂科AB17129028）
国家自然科学基金项目( 61771150) （ 61771150）
