摘要
传统的定位系统能够实现二维平面的准确定位,但在高度上的误差较大,导致空间定位体系直接降级成为平面定位体系。为了提高三维空间定位精度,本系统设计了一种基于超宽带(UWB)技术的高精度室内人员定位系统,主要由定位基站、定位标签、无线通信系统及上位机等组成。系统采用三维四点定位算法、双边双向测距(DS-TWR)算法得到标签到基站的距离,利用扩展的卡尔曼滤波算法对标签的距离进行平滑处理。实验表明该定位系统平均定位误差10cm左右,能够满足高速度、高精度人员运动定位场合。
The traditional positioning system can realize the accurate positioning of the two-dimensional plane,but the error in the height is large,leading to the direct degradation of the spatial positioning system to the plane positioning system.In order to improve the accuracy of 3D spatial positioning,a high-precision indoor human positioning system based on ultra-wideband(UWB)technology was designed,mainly composed of positioning base station,positioning label,wireless communication system and upper computer.Three-dimensional four-point positioning algorithm and double-sided two-way ranging(DS-TWR)algorithm in the system were used to obtain the distance from the label to the base station,and the distance of the label was smoothed by the extended Kalman filter algorithm.Experimental results show that the average positioning error of the system is about 10 cm,which can meet the needs of high speed and high precision human movement positioning situation.
作者
赵爽
ZHAO Shuang(Teaching and Research Department of Public Courses,Shenyang Sport University,Shenyang 110102,China)
出处
《大连工业大学学报》
CAS
北大核心
2023年第4期306-312,共7页
Journal of Dalian Polytechnic University
基金
辽宁省教育科学规划项目(JG20DB428).
关键词
超宽带技术
三维四点定位算法
双边双向测距算法
扩展的卡尔曼滤波算法
ultra-wideband technology
three dimensional four point positioning algorithm
double-sided two-way ranging algorithm
extended Kalman filter algorithm
