系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (10): 3351-3362.doi: 10.12305/j.issn.1001-506X.2026.10.08

• 传感器与信号处理 • 上一篇    

基于格拉姆角场的空间锥体目标微动参数快速提取方法

王勇(), 刘明帆(), 张荣政(), 夏浩然()   

  1. 哈尔滨工业大学电子与信息工程学院,黑龙江 哈尔滨 150001
  • 收稿日期:2025-07-21 接受日期:2025-11-28 出版日期:2026-10-25 发布日期:2026-09-30
  • 通讯作者: 王勇 E-mail:wangyong6012@hit.edu.cn;850630263@qq.com;21b305001@stu.hit.edu.cn;13604186779@163.com
  • 作者简介:王 勇(1979—),男,教授,博士,主要研究方向为雷达成像技术
    刘明帆(2001—),男,博士研究生,主要研究方向为机器学习在雷达信号处理中的应用
    张荣政(1995—),男,博士研究生,主要研究方向为雷达成像技术
    夏浩然(2002—),男,硕士研究生,主要研究方向为基于深度学习的雷达成像技术
  • 基金资助:
    国家杰出青年科学基金(62325104)资助课题

Rapid extraction of micro-motion parameters for space cone-shaped targets based on Gramian angular field

Yong Wang(), Mingfan Liu(), Rongzheng Zhang(), Haoran Xia()   

  1. School of Electronics and Information Engineering,Harbin Institute of Technology,Harbin 150001,China
  • Received:2025-07-21 Accepted:2025-11-28 Online:2026-10-25 Published:2026-09-30
  • Contact: Yong Wang E-mail:wangyong6012@hit.edu.cn;850630263@qq.com;21b305001@stu.hit.edu.cn;13604186779@163.com

摘要:

针对空间锥体目标外形相似、微动参数相差较大的特点,提出一种基于格拉姆角场的目标微动参数快速提取方法。首先利用改进可逆格拉姆角场对雷达回波进行预处理,进而采用卷积神经网络进行目标微动参数提取,最后通过计算目标的惯量比来体现目标的质量分布特征。所提方法利用可逆格拉姆角场代替时频分析技术,在显著降低计算量的同时可保持微动参数的估计精度,实现对空间锥体目标微动参数的快速提取。实验结果表明,所提方法能够有效地区分同一弹道中外形相同的弹头和诱饵等不同类型目标。

关键词: 卷积神经网络, 微动参数, 空间锥体目标, 格拉姆角场

Abstract:

Considering the similar appearance but significantly different micro-motion parameters among space cone-shaped targets, a rapid micro-motion parameter extraction method is proposed based on the Gramian angular field. First, the radar echo is preprocessed using an improved invertible Gramian angular field. Subsequently, a convolutional neural network is employed to extract micro-motion parameters. Finally, the mass distribution characteristics of the target are characterized by calculating its moment-of-inertia ratio. By replacing time-frequency analysis techniques with the reversible Gramian angular field, this method can significantly reduce computational complexity while maintaining the estimation accuracy of micro-motion parameters, achieving rapid extraction of micro-motion parameters for spatial conical targets. Experimental results demonstrate that the proposed method can effectively distinguish different types of targets such as warheads and decoys with identical appearance on the same trajectory.

Key words: convolutional neural network, micro-motion parameter, space cone-shaped target, Gramian angular field

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