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基于DOA-TDOA-FDOA的单站无源相干定位代数解

黄东华 赵勇胜 赵拥军 储美娟

黄东华, 赵勇胜, 赵拥军, 储美娟. 基于DOA-TDOA-FDOA的单站无源相干定位代数解[J]. 电子与信息学报, 2021, 43(3): 735-744. doi: 10.11999/JEIT200470
引用本文: 黄东华, 赵勇胜, 赵拥军, 储美娟. 基于DOA-TDOA-FDOA的单站无源相干定位代数解[J]. 电子与信息学报, 2021, 43(3): 735-744. doi: 10.11999/JEIT200470
Donghua HUANG, Yongsheng ZHAO, Yongjun ZHAO, Meijuan CHU. An Algebraic Solution for Single-Observer Passive Coherent Location Using DOA-TDOA-FDOA Measurements[J]. Journal of Electronics and Information Technology, 2021, 43(3): 735-744. doi: 10.11999/JEIT200470
Citation: Donghua HUANG, Yongsheng ZHAO, Yongjun ZHAO, Meijuan CHU. An Algebraic Solution for Single-Observer Passive Coherent Location Using DOA-TDOA-FDOA Measurements[J]. Journal of Electronics and Information Technology, 2021, 43(3): 735-744. doi: 10.11999/JEIT200470

基于DOA-TDOA-FDOA的单站无源相干定位代数解

doi: 10.11999/JEIT200470
基金项目: 国家自然科学基金(61703433),河南省科技攻关项目(192102210095)
详细信息
    作者简介:

    黄东华:女,1982年生,副教授,研究方向为电子信号分析与处理、无源定位

    赵勇胜:男,1990年生,博士生,研究方向为参数估计、无源定位

    赵拥军:男,1964年生,教授,博士生导师,主要研究方向为雷达信号处理、阵列信号处理

    储美娟:女,1988年生,助理工程师,主要研究方向为信息化建设、教育技术、数字媒体设计制作

    通讯作者:

    黄东华 donghua0928@163.com

  • 中图分类号: TN971

An Algebraic Solution for Single-Observer Passive Coherent Location Using DOA-TDOA-FDOA Measurements

Funds: The National Natural Science Foundation of China (61703433), The Scientific and Technological Research Project in Henan Province (192102210095)
  • 摘要: 针对利用单站接收多个外辐射源信号实现目标定位的问题,该文提出一种基于两步加权最小二乘的到达角度(DOA)、时差(TDOA)和频差(FDOA)联合定位代数解算法。首先,在第1步加权最小二乘估计中,通过引入辅助参数,将非线性的角度、时差和频差方程转化为伪线性形式,并利用加权最小二乘得到目标位置和速度的粗估计;而后在第2步加权最小二乘估计中利用辅助参数和目标位置参数之间的约束关系来构造另外一组线性方程,并再次利用加权最小二乘得到目标位置和速度的精确估计。推导了联合角度、时差和频差定位的克拉美罗界。理论分析和仿真结果表明,算法在观测误差较小时的定位误差可以达到克拉美罗界。
  • 图  1  不同观测误差水平下不同定位方式的CRLB比较

    图  2  不同观测误差水平下算法的定位精度

    图  3  不同位置下算法的定位精度

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出版历程
  • 收稿日期:  2020-06-11
  • 修回日期:  2021-01-28
  • 网络出版日期:  2021-02-24
  • 刊出日期:  2021-03-22

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