摘要
室内定位技术的快速发展对基于超宽带(Ultra Wide Band,UWB)的定位技术提出了更高的要求。然而,在室内环境中,受多种障碍及外界扰动影响,超宽带信号通常位于非视距(Non Line of Sight,NLoS)背景下。因此,文章对NLoS中的UWB目标跟踪与位置问题进行了研究。首先阐述了UWB技术,其次提出了一种基于到达时间差(Time Delay of Arrival,TDoA)的UWB室内定位加权算法,以解决NLoS环境下UWB室内定位算法精度较低、定位误差较大的问题,最后设计了相关实验进行验证。相关比较和模拟实验结果表明,提出的方法能够较好地改善非视距条件下的定位精度,并且具有较好的定位效果。
The rapid development of indoor positioning technology has put higher demands on Ultra Wide Band(UWB)based positioning technology.However,in indoor environments,affected by multiple obstacles and external disturbances,the UWB signals are usually located in the Non Line of Sight(NLoS)context.Therefore,the UWB target tracking and location problem in NLoS is investigated in this paper.Firstly,UWB technology is described,and secondly,a weighted UWB indoor positioning algorithm based on Time Delay of Arrival(TDoA)is proposed to solve the problem of low accuracy and large positioning error of UWB indoor positioning algorithm in NLoS environment,and finally,relevant experiments are designed for verification.The related comparison and simulation experimental results show that the proposed method can better improve the positioning accuracy under the non-line-of-sight conditions and has better positioning effect.
作者
薛晓霞
韩逢庆
XUE Xiaoxia;HAN Fengqing(Chongqing Jiaotong University,Chongqing 400074,China)
出处
《信息与电脑》
2023年第6期59-64,共6页
Information & Computer
基金
重庆市研究生联合培养基地建设项目(项目编号:JDLHPYJD2021016)
重庆市高校创新研究群体项目(项目编号:CXQT21021)
重庆交通大学研究生课程思政示范项目(项目编号:KCSZ2022015)。
关键词
超宽带(UWB)
室内定位技术
混合算法
Ultra Wide Band(UWB)
indoor positioning technology
hybrid algorithm
