| 引用本文: | 张皓宇， 全斯农， 田元荣， 邢世其， 朱 海. 多阶段联合的SAR图像灵巧压制干扰检测方法[J]. 雷达科学与技术, 2024, 22(4): 377-384.[点击复制] |
| ZHANG Haoyu, QUAN Sinong, TIAN Yuanrong, XING Shiqi, ZHU Hai. A Detection Method for Multi⁃Stage Joint SAR Images Dexterous Suppression Jamming[J]. Radar Science and Technology, 2024, 22(4): 377-384.[点击复制] |
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| 摘要: |
| 合成孔径雷达（Synthetic Aperture Radar, SAR）灵巧压制干扰将普通噪声干扰和转发式干扰技术相结合，不仅对干扰功率要求变低，还能够灵活控制干扰区域的形状、位置、能量和面积等，这对SAR图像解译的准确性造成较大影响。针对灵巧压制干扰形态多变、干扰特征鉴别性能受限，导致干扰难以被感知和检测的问题，本文提出一种多阶段联合的压制干扰检测方法。首先在分析灵巧压制干扰特性的基础上提取适用于干扰检测的灰度、尺寸和Gabor纹理等关键特征；然后采用分阶段处理方法提高检测效率，实现对不同面积、不同形状压制干扰的有效检测。实验结果表明，与改进CFAR算法、PCA等方法相比，关键特征组合能够提高干扰检测精度，分阶段方法能够提高干扰检测效率。 |
| 关键词: 合成孔径雷达 干扰检测 灵巧压制干扰 多阶段联合 |
| DOI：DOI:10.3969/j.issn.1672-2337.2024.04.003 |
| 分类号:TN958；TN957.52 |
| 基金项目:国家自然科学基金青年科学基金（No.62201589） |
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| A Detection Method for Multi⁃Stage Joint SAR Images Dexterous Suppression Jamming |
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ZHANG Haoyu, QUAN Sinong, TIAN Yuanrong, XING Shiqi, ZHU Hai
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State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System,National University of Defense Technology, Changsha 410073, China
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| Abstract: |
| Synthetic aperture radar （SAR） dexterous suppression jamming combines common noise jamming and repeater jamming technology. It not only requires lower jamming power, but also can flexibly control the shape, position, energy and area of the jamming, which has a great impact on the accuracy of SAR images interpretation. Aiming at the problem that the shape of dexterous suppression interference is changeable and the performance of interference feature identification is limited, which makes the interference difficult to be perceived and detected, this paper proposes a multi?stage joint detection method. Firstly, the key features such as the grayscale, size and Gabor texture suitable for jamming detection are extracted based on the analysis of the characteristics of dexterous suppression jamming. Then the stage?by?stage processing method is used to achieve effective detection of different areas and different shapes. The experimental results show that, compared with the improved CFAR algorithm, PCA and other methods, the combination of key features can improve the accuracy of jamming detection, and the multi?stage method can improve the efficiency. |
| Key words: SAR jamming detection dexterous suppression jamming multi⁃stage joint |
