Systems Engineering and Electronics ›› 2026, Vol. 48 ›› Issue (2): 490-502.doi: 10.12305/j.issn.1001-506X.2026.02.11

• Sensors and Signal Processing • Previous Articles    

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

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

CLC Number: 

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