多基站下基于信号到达时间的室内三维定位
发布时间：2019-01-03 10:57
【摘要】：对基于无线电信号的到达时间(TOA)的定位技术进行了研究.首先,建立了TOA测量值与真实值间的函数关系,通过求解含惩罚项的非线性最小二乘问题实现终端定位和噪声估计,并在已有研究的基础上提出了Alternating Iterative Reweighting(AIR)算法;其次,利用基站之间的几何位置进行筛选,根据每个终端信息完成自适应的最少基站的选择及定位;并结合物理特性实现终端运动轨迹预测;最后,根据基站通信半径筛选出可被定位终端,完成定位精度与终端平均连接度数之间关系的建模.
[Abstract]:The location technology of time of arrival (TOA) based on radio signal is studied. Firstly, the functional relationship between the measured value of TOA and the real value is established, and the terminal location and noise estimation are realized by solving the nonlinear least square problem with penalty terms, and the Alternating Iterative Reweighting (AIR) algorithm is proposed on the basis of previous research. Secondly, the geometric position between the base stations is used to select and locate the least adaptive base station according to the information of each terminal, and the trajectory prediction of the terminal motion is realized by combining the physical characteristics. Finally, according to the communication radius of the base station, the locatable terminal is selected, and the relationship between the positioning accuracy and the average connection degree of the terminal is established.
【作者单位】： 电子科技大学通信抗干扰技术国家级重点实验室;电子科技大学电子薄膜与集成器件国家重点实验室;
【分类号】：TN929.5
本文编号：2399279
[Abstract]:The location technology of time of arrival (TOA) based on radio signal is studied. Firstly, the functional relationship between the measured value of TOA and the real value is established, and the terminal location and noise estimation are realized by solving the nonlinear least square problem with penalty terms, and the Alternating Iterative Reweighting (AIR) algorithm is proposed on the basis of previous research. Secondly, the geometric position between the base stations is used to select and locate the least adaptive base station according to the information of each terminal, and the trajectory prediction of the terminal motion is realized by combining the physical characteristics. Finally, according to the communication radius of the base station, the locatable terminal is selected, and the relationship between the positioning accuracy and the average connection degree of the terminal is established.
【作者单位】： 电子科技大学通信抗干扰技术国家级重点实验室;电子科技大学电子薄膜与集成器件国家重点实验室;
【分类号】：TN929.5
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