多基站下基于信號到達時間的室內三維定位
發(fā)布時間:2019-01-03 10:57
【摘要】:對基于無線電信號的到達時間(TOA)的定位技術進行了研究.首先,建立了TOA測量值與真實值間的函數關系,通過求解含懲罰項的非線性最小二乘問題實現終端定位和噪聲估計,并在已有研究的基礎上提出了Alternating Iterative Reweighting(AIR)算法;其次,利用基站之間的幾何位置進行篩選,根據每個終端信息完成自適應的最少基站的選擇及定位;并結合物理特性實現終端運動軌跡預測;最后,根據基站通信半徑篩選出可被定位終端,完成定位精度與終端平均連接度數之間關系的建模.
[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.
【作者單位】: 電子科技大學通信抗干擾技術國家級重點實驗室;電子科技大學電子薄膜與集成器件國家重點實驗室;
【分類號】:TN929.5
本文編號: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.
【作者單位】: 電子科技大學通信抗干擾技術國家級重點實驗室;電子科技大學電子薄膜與集成器件國家重點實驗室;
【分類號】:TN929.5
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