系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (2): 490-502.doi: 10.12305/j.issn.1001-506X.2026.02.11

• 传感器与信号处理 • 上一篇    

基于多干扰机协同调制的多通道SAR-GMTI欺骗干扰方法

刘梦莉1,2,3(), 舒高峰1,2,3, 李宁1,2,3,*()   

  1. 1. 河南大学计算机与信息工程学院,河南 开封 475004
    2. 河南大学河南省大数据分析与处理重点实验室,河南 开封 475004
    3. 河南大学河南省空间信息处理工程研究中心,河南 开封 475004
  • 收稿日期:2024-10-10 修回日期:2025-02-19 出版日期:2025-06-11 发布日期:2025-06-11
  • 通讯作者: 李宁 E-mail:LiuMengLi@henu.edu.cn;hedalining@henu.edu.cn
  • 作者简介:刘梦莉(2000—),女,硕士研究生,主要研究方向为合成孔径雷达主动干扰
    舒高峰(1991—),男,讲师,博士,主要研究方向为SAR信号处理与成像
  • 基金资助:
    河南省自然科学基金(242300421170)资助课题

Deceptive jamming method against multi-channel SAR-GMTI via cooperative modulation of multiple jammers

Mengli LIU1,2,3(), Gaofeng SHU1,2,3, Ning LI1,2,3,*()   

  1. 1. College of Computer and Information Engineering,Henan University,Kaifeng 475004,China
    2. Henan Key Laboratory of Big Data Analysis and Processing,Henan University,Kaifeng 475004,China
    3. Henan Engineering Research Center of Spatial Information Processing,Henan University,Kaifeng 475004,China
  • Received:2024-10-10 Revised:2025-02-19 Online:2025-06-11 Published:2025-06-11
  • Contact: Ning LI E-mail:LiuMengLi@henu.edu.cn;hedalining@henu.edu.cn

摘要:

针对单干扰机在合成孔径雷达(synthetic aperture radar, SAR)地面运动目标指示(ground moving target indication, GMTI)欺骗干扰中,存在虚假运动目标估计运动参数信息与设定值不匹配的问题,提出一种基于多干扰机协同调制的多通道SAR-GMTI欺骗干扰方法。首先利用运动调制干扰原理设计方位偏移调制项,再辅以距离移频调制构建多干扰机协同欺骗干扰模型。然后引入多通道相位误差调制建立多干扰机幅度调制协同条件,并对其干扰性能进行详细分析。理论分析与实验结果表明,所提方法能够在SAR图像指定位置上生成径向速度和定位位置均可控的虚假运动目标,可以有效提高虚假目标的仿真度。

关键词: 合成孔径雷达, 地面运动目标指示, 多干扰机, 欺骗干扰

Abstract:

Aiming at the problem of mismatched motion parameter estimates of false moving targets and their set values in single-jammer deceptive jamming for synthetic aperture radar (SAR) ground moving target indication (GMTI), a deceptive jamming method against multi-channel SAR-GMTI via cooperative modulation of multiple jammers is proposed. First, an azimuth offset modulation term is designed using the principle of motion-modulated jamming. Next, a cooperative deceptive jamming model with multiple jammers is established by applying range frequency modulation. Then, cooperative conditions for amplitude modulation of multiple jammers are established by introducing multiple-channel phase error modulation. A detailed analysis of the jamming performance is conducted. Theoretical analysis and experimental results demonstrate that the proposed method can generate false moving targets at specified locations in SAR images, while simultaneously achieving flexible control over the radial velocity and positioning of the false targets, which can significantly enhance the realism of false targets.

Key words: synthetic aperture radar (SAR), ground moving target indication (GMTI), multiple jammers, deceptive jamming

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