对SAR的二维多普勒移频间歇采样干扰

doi:10.3969/j.issn.1001-2400.2017.02.030

摘要/Abstract

摘要：

针对如何准确地将假目标产生在指定成像区域上这一问题，提出了针对合成孔径雷达的二维多普勒移频间歇采样干扰方法．该方法对截获的雷达信号进行二维间歇采样和多普勒移频处理，并将其转发回原雷达，从而在指定区域产生假目标点阵．从理论上分析了假目标点阵的产生机理、位置及分布特性，给出了假目标点阵幅度不对称的原因和能量补偿调制系数．仿真实验验证了理论分析的正确性和干扰方法的有效性，同时表明该方法可以降低传统干扰对干扰机位置的严格要求．

关键词: 电子对抗, 合成孔径雷达, 欺骗干扰, 多普勒移频, 间歇采样

Abstract:

To generate the false targets in the desired area accurately, a novel two dimensional(2-D) intermittent sampling jamming algorithm against synthetic aperture radar(SAR) is presented. The intercepted radar signals are processed via 2-D intermittent sampling and Doppler shift-frequency and retransmitted to radar. Hence, the false target-lattice emerges in the specified area. The generation mechanism, position and distribution characteristics of false target-lattice are discussed. Meanwhile, the reason for the asymmetric amplitude of the target false-lattice and the modulation factor of energy compensation are presented. The correctness of theoretical analysis and validity of the proposed algorithm are verified through simulation experiments. Compared with conventional methods, the critical requirement of the jammer position can be reduced by the proposed method.

Key words: electronic countermeasure(ECM), synthetic aperture radar(SAR), deceptive jamming, Doppler shift-frequency, intermittent sampling

董春曦;畅鑫. 对SAR的二维多普勒移频间歇采样干扰[J]. 西安电子科技大学学报, 2017, 44(2): 178-184.

DONG Chunxi;CHANG Xin. 2-D Doppler shift-frequency intermittent sampling jamming against SAR[J]. Journal of Xidian University, 2017, 44(2): 178-184.

参考文献

［1］孙光才, 周峰, 邢孟道, 等. 虚假场景SAR欺骗式干扰技术及实时性分析［J］. 西安电子科技大学学报, 2009, 36(5): 813-818.
SUN Guangcai, ZHOU Feng, XING Mengdao, et al. Deception-jamming Technology Against the SAR Based on the Deception Scene and Real-time Analysis ［J］. Journal of Xidian University, 2009, 36(5): 813-818.
［2］陈溅来, 李震宇, 杨军, 等. 地球同步轨道SAR曲线轨迹二维空间分辨率分析［J］. 西安电子科技大学学报, 2015, 42(1): 62-68.
CHEN Jianlai, LI Zhenyu, YANG Jun, et al. Analysis of the Two-dimensional Spatial Resolution for the Curved Trajectory of GEO SAR［J］. Journal of Xidian University, 2015, 42(1): 62-68.
［3］黄洪旭, 黄知涛, 周一宇. 对合成孔径雷达的移频干扰研究［J］. 宇航学报, 2006, 27(3): 463-468.
HUANG Hongxu, HUANG Zhitao, ZHOU Yiyu. A Study on the Shift-frequency Jamming to SAR［J］. Journal of Astronautics, 2006, 27(3): 463-468.
［4］吴晓芳, 代大海, 王雪松, 等. SAR方位向多普勒调制干扰［J］. 现代雷达, 2010, 32(10): 55-60.
WU Xiaofang, DAI Dahai, WANG Xuesong, et al. Doppler Modulation Jamming in Azimuth to SAR ［J］. Modern Radar, 2010, 32(10): 55-60.
［5］张静克, 代大海, 邢世其, 等. 对调频斜率极性捷变SAR间歇采样转发干扰效果分析［J］. 系统工程与电子技术, 2015, 37(5): 1030-1034.
ZHANG Jingke, DAI Dahai, XING Shiqi, et al. Analysis of Jamming Effect on Intermittent Sampling Repeater Jamming to CRPJ-SAR ［J］. System Engineering and Electronics, 2015, 37(5): 1030-1034.
［6］张养瑞, 李云杰, 李曼玲, 等. 间歇采样非均匀重复转发实现多假目标压制干扰［J］. 电子学报, 2016, 44(1): 46-53.
ZHANG Yangrui, LI Yunjie, LI Manling, et al. Suppress Jamming Technique of Multiple False Targets on Interrupted-sampling and Non-uniform Periodic Repeater ［J］. Acta Electronica Sinica, 2016, 44(1): 46-53.
［7］ PAN X Y, WANG W, FENG D J, et al. On Deception Jamming for Countering Bistatic ISAR Based on Sub-Nyquist Sampling ［J］. IET Radar, Sonar and Navigation, 2014, 8(3): 173-179.
［8］贾鑫, 胡华超, 吴金亮, 等. SAR二维间歇采样转发干扰研究［J］. 航天电子对抗, 2011, 27(5): 29-32.
JIA Xin, HU Huachao, WU Jinliang, et al. 2-D Interrupted-sampling Repeater Jamming against SAR ［J］. Aerospace Electronic Warfare, 2011, 27(5): 29-32.
［9］蔡幸福, 宋建社, 郑永安, 等. 二维间歇采样延迟转发SAR干扰技术及其应用［J］. 系统工程与电子技术, 2015, 27(3): 566-571.
CAI Xingfu, SONG Jianshe, ZHENG Yongan, et al. SAR Jamming Technology Based on 2-D Intermittent Sampling Delay Repeater and Its Application ［J］. System Engineering and Electronics, 2015, 27(3): 566-571.
［10］胡华超, 贾鑫, 吴彦鸿, 等. SAR二维间歇采样转发散射波干扰研究［J］. 装备指挥技术学院学报, 2012, 23(1): 94-97.
HU Huachao, JIA Xin,WU Yanhong, et al. Research on the Theory of 2-D Interrupted Sampling Repeater Scatter-wave Jamming to SAR ［J］. Journal of the Academy of Equipment Command ＆ Technology, 2012, 23(1): 94-97.
［11］张静克, 代大海, 邢世其, 等. SAR脉内分段排序和脉间间歇采样复合转发干扰［J］. 电波科学学报, 2015, 30(2): 224-231.
ZHANG Jingke, DAI Dahai, XING Shiqi, et al. A Composite Repeating Jamming Method for SAR Based on In-pulse Separation and Reordering and Interpulse Intermittent Sampling ［J］. Chinese Journal of Radio Science, 2015, 30(2): 224-231.
［12］ LI C Z, SU W M, GU H, et al. Improved Interrupted Sampling Repeater Jamming Based on DRFM ［C］//Proceedings of the 2014 IEEE International Conference on Signal Processing, Communications and Computing. Piscataway: IEEE, 2014: 254-257.
［13］ WANG X S, LIU J C, ZHANG W M, et al. Mathematic Principles of Interrupted-sampling Repeater Jamming(ISRJ) ［J］. Science in China(Series F:Information Science), 2007, 36(1): 891-901.

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