A FOA-Based Localization Method for Moving Single Station Under Unknown Signal Propagation Speed

WANG Ding; YIN Jie-xin; ZHENG Na-e; NIE Fu-quan

doi:10.12263/DZXB.20210852

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A FOA-Based Localization Method for Moving Single Station Under Unknown Signal Propagation Speed

PAPERS | 更新时间：2025-12-08

- A FOA-Based Localization Method for Moving Single Station Under Unknown Signal Propagation Speed
- ACTA ELECTRONICA SINICA Vol. 50, Issue 5, Pages: 1181-1191(2022)
- 作者机构：
  
  1.中国人民解放军战略支援部队信息工程大学信息系统工程学院, 河南郑州 450001
  2.中国人民解放军战略支援部队信息工程大学数据与目标工程学院, 河南郑州 450001
  3.国家数字交换系统工程技术研究中心, 河南郑州 450002
  4.卫华集团有限公司, 河南长垣 453400
- 作者简介：
- 基金信息：
- DOI：10.12263/DZXB.20210852
  CLC： TN911
- Received：05 July 2021，
  
  Revised：2021-11-04，
  
  Published：25 May 2022
- 稿件说明：
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王鼎,尹洁昕,郑娜娥等.信号传播速度未知下基于运动单站到达频率的定位新方法[J].电子学报,2022,50(05):1181-1191.

WANG Ding,YIN Jie-xin,ZHENG Na-e,et al.A FOA-Based Localization Method for Moving Single Station Under Unknown Signal Propagation Speed[J].ACTA ELECTRONICA SINICA,2022,50(05):1181-1191.
王鼎,尹洁昕,郑娜娥等.信号传播速度未知下基于运动单站到达频率的定位新方法[J].电子学报,2022,50(05):1181-1191. DOI： 10.12263/DZXB.20210852.

WANG Ding,YIN Jie-xin,ZHENG Na-e,et al.A FOA-Based Localization Method for Moving Single Station Under Unknown Signal Propagation Speed[J].ACTA ELECTRONICA SINICA,2022,50(05):1181-1191. DOI： 10.12263/DZXB.20210852.

摘要

基于运动单站到达频率的目标定位是一类重要定位技术，现有到达频率定位方法均认为信号传播速度精确已知，但在一些场景中传播速度可能无法准确获得，这会产生较大影响. 针对该问题，本文提出信号传播速度未知下基于运动单站到达频率的目标定位新方法，其包含两个阶段. 阶段1利用运动单站与目标间的几何关系构建第1组伪线性观测方程，并基于此提出目标位置和信号传播速度解耦合优化算法；阶段2从最初到达频率观测模型出发构建第2组伪线性观测方程，并将阶段1估计结果融入该观测方程，以获得全部参数闭式解. 新方法仅需对信号传播速度进行迭代，无需目标位置初始值，可降低局部收敛的风险. 最后，文中通过理论性能分析证明新方法的渐近统计最优性，并利用仿真实验验证新方法的优越性.

Abstract

Target localization based on the frequency of arrival(FOA) observations for moving single station is an important location technology. All the existing FOA-based localization methods assume that the signal propagation speed is accurately known. However

in some positioning scenarios

the exact signal propagation speed may not be available

which will lead to negative influence. Aiming at this problem

this paper proposes a FOA-based localization method for moving single station with unknown signal propagation speed. The proposed method consists of two stages. Specifically

stage one constructs the first set of pseudo-linear equations based on the geometric relationship between the moving single station and the target

and then the target location and the signal propagation speed can be estimated in a decoupled manner. In stage two

the second set of pseudo-linear equations is formed from the original FOA measurement model

and the estimation results of stage one are incorporated into the second set of equations to obtain the closed-form solution to all the unknowns. The proposed method only performs iteration with respect to the signal propagation speed

and it does not need to choose the initial value of the source position. Hence

the risk of suffering from local convergence can be greatly reduced. Finally

the asymptotic efficiency of the proposed estimator is proved by theoretical performance analysis

and the superiority of the presented method is verified by some simulation experiments.

关键词

Keywords

references

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Related Institution

Institute of Data and Target Engineering， PLA Strategic Support Force Information Engineering University

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