改进FSM步态检测的行人航位推算方法  

Pedestrian Dead Reckoning Method Based on Improved FSM Gait Detection

作　　者：李静[1] 王庆[1] 王胜利[2] 许九靖 LI Jing;WANG Qing;WANG Shengli;XU Jiujing(School of Instrument Science and Engineering,Southeast University,2 Sipailou,Nanjing 210096,China;College of Ocean Science and Engineering,Shandong University of Science and Technology,579 Qianwangang Road,Qingdao 266590,China)

机构地区：[1]东南大学仪器科学与工程学院,南京市210096 [2]山东科技大学海洋科学与工程学院,青岛市266590

出　　处：《大地测量与地球动力学》2023年第2期164-167,202,共5页Journal of Geodesy and Geodynamics

基　　金：国家重点研发计划(2020YFB1600703)。

摘　　要：针对传统波峰检测法的步态识别率低以及普适性和稳定性较差等问题,提出改进FSM步态检测的行人航位推算方法。该方法关注当前的步伐状态,将一个步态周期划分为5种状态并引入峰值阈值限制,从用户不同运动状态和手机模态进行实验分析。结果表明,该算法不但具有较高的步态识别准确率,而且可减小航位推算时间累积误差,具有一定的可靠性和稳定性,能够满足室内定位需求。Aiming at the problems of low gait recognition rate,poor universality and stability of traditional peak detection,we propose a pedestrian dead reckoning method based on improved FSM gait detection.The proposed method focuses on the current gait state,devides a gait cycle into five states and introduces the peak threshold,and carries out experiments from different motion states and mobile phone modes.The results show that the algorithm not only has high gait recognition accuracy,but also reduces the time cumulative error.It has certain reliability,stability and can meet the needs of indoor positioning.

关 键 词：FSM 步态检测 行人航位推算 室内定位 

分 类 号：P228[天文地球—大地测量学与测量工程]