摘要
针对非视距环境下的超宽带节点定位中问题,为提高超宽带(UWB)定位精度,对基于最小二乘法的超宽带节点定位算法进行了改进。首先对超宽带测距方法进行了分析,重点对选择的基于接收信号到达时间的双边双向测距方法进行了研究;在此基础上,对超宽带节点定位原理进行了介绍,对选定的最小二乘法定位算法进行分析;最后,通过Matlab对非视距环境下的定位进行仿真验证。仿真结果表明,与泰勒级数定位算法、三边质心定位算法相比,最小二乘法定位算法具有较高的定位精度和鲁棒性。
For UWB node localization in NLOS environment and in order to improve the UWB positioning accuracy,a node localization algorithm of UWB was proposed.Firstly,the UWB ranging methods was analyzed,and the double-sided two way ranging method based on the arrival time of receiving was the focus.On this basis,the principle of UWB node location was introduced,and the least squares localization algorithm was analyzed.Finally,the localization effects in NLOS environment were simulated and verified by Matlab.The simulation results show that compared with Taylor series localization algorithm and trilateral centroid localization algorithm,the LS localization algorithm,the localization accuracy and robustness are satisfied.
作者
吴俊康
张烈平
匡贞伍
神显豪
张祖琼
WU Jun-kang;ZHANG Lie-ping;KUANG Zhen-wu;SHEN Xian-hao;ZHANG Zu-qiong(College of Mechanical and Control Engineering,Guilin University of Technology,Guilin 541006,China;College of Information Science and Engineering,Guilin University of Technology,Guilin 541006,China;Network and Information Center,Guilin University of Technology,Guilin 541006,China)
出处
《桂林理工大学学报》
CAS
北大核心
2022年第3期736-741,共6页
Journal of Guilin University of Technology
基金
国家自然科学基金项目(61741303)
广西空间信息与测绘重点实验室基金项目(19-185-10-08)
广西高校中青年教师科研基础能力提升项目(2021KY0260)。
关键词
超宽带
非视距
接收信号到达时间
双边双向测距
最小二乘法
ultra wideband(UWB)
non line of sight(NLOS)
time of arrival
double-sided two way ranging(DS-TWR)
least squares(LS)
