测距误差改正的超宽带定位系统研究  

Study on ultra-wideband positioning system based on range error correction

作　　者：王川阳 王坚 余航[1] 韩厚增[1] 宁一鹏[1] WANG Chuanyang;WANG Jian;YU Hang;HAN Houzeng;NING Yipeng(NASG Key Laboratory of Land Environment and Disaster Monitoring,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China;School of Geomatics and Urban Information,Beijing University of Civil Engineering and Architecture,Beijing 102616,China)

机构地区：[1]中国矿业大学国土环境与灾害监测国家测绘地理信息局重点实验室,江苏徐州221116 [2]北京建筑大学测绘与城市空间信息学院,北京102616

出　　处：《测绘科学》2019年第1期98-103,117,共7页Science of Surveying and Mapping

基　　金：国家重点研发计划资助项目(2016YFC0803103)

摘　　要：针对超宽带定位系统存在的测距误差影响定位结果的问题,该文分析了超宽带定位系统测距误差变化规律,并给出了误差改正模型。在定位过程中,首先对测距信息进行误差模型改正,随后基于双向测距的TOA定位方法,利用chan算法和高斯-牛顿迭代算法解算出定位结果,并通过动静态实验对比测距误差改正前后定位结果。结果表明,利用误差改正后的测距信息进行定位解算,能够有效提高系统的测距和定位精度。According to the fact that there is range error that affecting positioning in ultra-wideband positioning system,this paper analyzes the variation law of ranging error of UWB positioning system,and gives the error correction model.In the process of positioning,the ranging information is corrected firstly,then the Gaussian Newton iterative algorithm is used to solve the localization result based on the TOA method of two way ranging,and the positioning result is compared before and after range error correction.The results indicated that it can effectively improve the ranging and positioning accuracy of the system by using the error correction information.

关 键 词：超宽带 定位 测距误差 最小二乘拟合 迭代法 

分 类 号：P228[天文地球—大地测量学与测量工程]