| UWB室内距离交会定位算法的研究与性能分析 |
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| 作者姓名： | 陈颖 黄李雄 张鹏 花向红 |
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| 作者单位： | 武汉大学测绘学院 ,湖北 武汉 ,430079;武汉大学测绘学院 ,湖北 武汉 ,430079;精密工程与工业测量国家测绘地理信息局重点实验室 ,湖北 武汉 ,430079;武汉大学测绘学院 ,湖北 武汉 ,430079;武汉大学灾害监测与防治研究中心 ,湖北 武汉 ,430079 |
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| 基金项目： | 国家自然科学基金(41674005)。 |
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| 摘 要： | 在众多室内定位技术中,超宽带(ultra-wideband,UWB)技术以其极大的带宽、高时间分辨率、高速数据传输等特点而备受关注,目前,UWB超宽带定位技术已广泛应用于展厅、仓库、超市、图书馆、矿井等环境中。针对基于超宽带室内距离交会定位原理的最小二乘算法及几何算法两种算法的性能进行了实验与评估,不仅比较了平面定位精度,而且对比了两种算法的执行时间。实验结果显示,在平面定位中,最小二乘算法具有更好的内、外符合精度,可以更为准确的估计移动目标的位置信息;但几何算法在执行时间和计算效率方面有着显著的优势。
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| 关 键 词： | 室内定位 超宽带技术 ML(maximum likelihood)算法 距离交会 最小二乘 几何方法 |
Research and Performance Analysis of UWB Indoor Intersection Location Algorithm |
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| Authors: | CHEN Ying HUANG Lixiong ZHANG Peng HUA Xianghong |
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| Institution: | (School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China;The Key Laboratory of Precise Engineering and Industry Surveying,National Administration of Surveying,Mapping and Geoinformation,Wuhan University,Wuhan 430079,China;Hazard Monitoring and Prevention Research Center,Wuhan University,Wuhan 430079,China) |
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| Abstract: | Among indoor positioning technologies,UWB technology attracts much attention for its great bandwidth,high time resolution,high-speed data transmission;and it has been used in various environments,such as exhibition halls,warehouses,supermarkets,libraries and mines.This paper studies and evaluates the performance of the least squares algorithm and the geometric algorithm,comparing the plane positioning accuracy,as well as the execution time.Experimental results show that,the least squares algorithm has better internal and external precision in plane positioning,and,can estimate the position of the moving target more precisely.However,as for the execution time and calculation efficiency,the geometric algorithm has a significant advantage. |
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| Keywords: | indoor positioning ultra-wideband ML(maximum likelihood)algorithm distance rendezvous least squares geometric algorithm |
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