传感技术学报2016，Vol.29Issue(9)：1389-1394,6.DOI:10.3969/j.issn.1004-1699.2016.09.016
徒步导航系统中的自适应步态优化检测方法研究
Research on Adaptive Gait Optimization Detection Method in Pedestrian Navigation System
摘要
Abstract
According to that the highly positioning precision of pedestrian navigation system depend heavily on the re⁃liability and accuracy of gait detection,an adaptive gait detection method was proposed,which adjust parameter based on K-means clustering. Foot motion during walking phases was studied firstly,and analyzed the data characteristics of inertial measurement output acceleration and angular velocity,then proposed gait detection scheme which using the amplify of specific force as its detection basis. The three key parameters,the window size of sliding variance,the ini⁃tial detection threshold and the time parameter in false correction and their relationship were also analyzed respective⁃ly,and find out the basic selection rules of the widow parameter and the initial threshold,while the time parameter can be adaptively selected using K-means clustering in order to correct the false detected gait in initial detection result. Five groups walking experiments under different conditions was carried out using laboratory existing MEMS sensors, the experimental results verified the feasibility and effectiveness of the proposed gait detection algorithm.关键词
人员定位系统/步态检测/滑动方差/K均值聚类/自适应Key words
pedestrian navigation system/gait detection/moving variance/K-means clustering/adaptability分类
交通工程引用本文复制引用
孙伟,丁伟,李瑞豹..徒步导航系统中的自适应步态优化检测方法研究[J].传感技术学报,2016,29(9):1389-1394,6.基金项目
国家自然科学基金项目（41304032）；高等学校博士学科点专项科研基金项目（新教师类）（20132121120005）；第8批中国博士后科学基金特别项目（2015T80265）；第58批中国博士后科学基金面上项目（2015M581360）；辽宁省高等学校杰出青年学者成长计划项目（LJQ2015044）；辽宁省“百千万人才工程”培养经费项目（辽百千万立项［2015］76号）；辽宁省自然科学基金项目（2015020078）；江西省数字国土重点实验室开放研究基金项目（DLLJ201501）；精密工程与工业测量国家测绘地理信息局重点实验室开放基金项目（PF2015-13）；地球空间环境与大地测量教育部重点实验室开放基金项目（14-01-05）；对地观测技术国家测绘地理信息局重点实验室开放基金项目（K201401）；海岛（礁）测绘技术国家测绘地理信息局重点实验室项目 （）
