Shandong Science

   

A Passive jamming control method for synthetic aperture radar based on importance distribution maps

CHU Weiqin 1, YU Huijuan 1*, GU Jie1, LI Zheng1, XIE Xin2, ZHANG Jialin1   

  1. 1. Beijing Institute of Space Launch Technology, Beijing 100076, China;2. University of Electronic Science and Technology of China, Chengdu 611731, China
  • Received:2024-12-11 Accepted:2025-01-21 Online:2025-10-23
  • Contact: YU Huijuan E-mail: yuhuijuan15@163.com

Abstract: Synthetic aperture radar (SAR) is widely employed in geospatial mapping, national defense, and microwave remote sensing due to its capability for high-resolution imaging under all-weather, all-day conditions. Consequently, developing effective jamming techniques to degrade SAR-based target reconnaissance and identification has become a critical challenge in radar countermeasure research. This study proposes a method to generate importance distribution maps through spatial coordinate transformation, capturing the spatial relationships and relative importance of targets within a scene. Based on this map, a SAR passive jamming control method is developed. A U-Net-based architecture is constructed to design a decision-making algorithm for radar jamming strategies, aiming to prioritize the protection of critical targets with minimal resource expenditure. Simulation results demonstrate that the proposed method, applied to passive motion angle deception jamming, significantly improves jamming efficiency. Across different scenarios, the algorithm-generated jamming strategies effectively disrupt the target areas, with jamming strips fully covering the regions of interest in each case.

Key words: synthetic aperture radar, passive jamming, importance distribution map

CLC Number: 

  • O436

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