山东科学

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基于重要性分布图的合成孔径雷达无源干扰调控方法

楚维钦1,余慧娟1*,谷捷1,李正1,谢昕2,张佳林1   

  1. 1北京航天发射技术研究所,北京100076;2 电子科技大学,成都611731
  • 收稿日期:2024-12-11 接受日期:2025-01-21 上线日期:2025-10-23
  • 通信作者: 余慧娟 E-mail: yuhuijuan15@163.com
  • 作者简介:楚维钦(1991-),女,博士,研究方向:现代防御技术。

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

摘要: 合成孔径雷达(synthetic aperture radar, SAR)以其全天时、全天候对观测区域进行高分辨率成像的特点,被广泛应用于地球测绘、国防军事、微波遥感等多个领域。因此,如何有效地对SAR进行干扰,以降低SAR系统对目标侦察识别的准确率,成为雷达对抗领域研究的重难点问题。该文通过空间坐标转换的方法,生成用于表征场景中不同目标空间位置关系以及重要性程度的重要性分布图,并基于此设计了一种基于重要性分布图的SAR无源干扰调控方法,搭建了U-Net网络进行雷达干扰策略决策算法,以期达到以最小代价优先保护重要性更高的目标的目的。仿真试验表明,该方法通过构造重要性分布图对干扰问题进行可视化表征,并将先进人工智能算法用于无源运动干扰装置调控决策,实现了多干扰装置协同决策,显著提升了SAR无源干扰的智能化水平,在不同场景中,算法解算得到的干扰策略都能对目标区域进行很好的干扰,干扰条带完全覆盖住了每个场景中的区域。

关键词: 合成孔径雷达, 无源干扰, 重要性分布图

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

中图分类号: 

  • O436

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