| 引用本文: | 徐乐涛,冯德军,张文明,等.基于间歇采样转发干扰的ISAR群目标生成方法.[J].国防科技大学学报,2013,35(5):140-145.[点击复制] |
| XU Letao,FENG Dejun,ZHANG Wenming,et al.Group targets generation against ISAR based on intermittent-sampling repeater jamming(ISRJ)[J].Journal of National University of Defense Technology,2013,35(5):140-145[点击复制] |
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| 基于间歇采样转发干扰的ISAR群目标生成方法 |
| 徐乐涛1,2, 冯德军1,2, 张文明3, 王雪松1,2 |
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(1.国防科技大学 电子信息系统复杂电磁环境效应国家重点实验室， 湖南 长沙 410073;2.
2.国防科技大学 电子科学与工程学院， 湖南 长沙 410073;3.2.国防科技大学 电子科学与工程学院， 湖南 长沙 410073)
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| 摘要: |
| 基于间歇采样转发干扰理论，提出了一种ISAR二维群目标生成方法。采用伴飞式干扰机，对所掩护的目标回波信号进行间歇采样转发，在ISAR上形成逼真的虚假二维群目标图像；通过调整干扰机和目标的空间位置关系，生成二维假目标序列，并能模拟目标的动态姿态变化。在介绍了间歇采样转发干扰的基本原理后，阐述了伴飞式干扰原理，然后从理论上推导了伴飞式干扰机的功率和空间位置要求，接下来着重分析了二维群目标生成的理论原因，指出了影响二维群目标分布的关键因素和群目标的姿态角变化规律，最后进行了仿真验证，结果表明了该方法的有效性。研究成果对于ISAR干扰机的设计和工程应用具有指导意义。 |
| 关键词: 间歇采样转发 二维群目标 伴飞式干扰机 姿态角 逆合成孔径雷达 |
| DOI： |
| 投稿日期：2013-01-27 |
| 基金项目:国家自然科学基金资助项目（61072119）；国防科技大学优秀研究生创新资助（S120403） |
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| Group targets generation against ISAR based on intermittent-sampling repeater jamming(ISRJ) |
| XU Letao1,2, FENG Dejun1,2, ZHANG Wenming3, WANG Xuesong1,2 |
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(1.State Key Laboratory of Complex Electromagnetic Environmental Effects on Electronics and Information System，
National University of Defense Technology， Changsha 410073， China;2.
2. College of Electronic Science and Engineering， National University of Defense Technology， Changsha 410073， China;3.2. College of Electronic Science and Engineering， National University of Defense Technology， Changsha 410073， China)
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| Abstract: |
| A novel generation method of 2-D ISAR group targets is presented based on Intermittent-Sampling Repeater Jamming (ISRJ). Escort free-flight jammer was used to intermittently sample and repeater target echoes, which can generate vivid 2-D group targets in ISAR. By adjusting jammer and target’s relative space position, 2-D group targets are able to simulate target’s attitude angle dynamically. After the theory of ISRJ was expounded, the principle of escort free-flight jamming was introduced. A theoretical study was carried out to determine the requirement for power and position. Then the theoretical reason of 2-D group targets was emphatically analyzed. The key factor of false targets distribution and attitude angle was explored. Finally, the simulation demonstrates that the above method is effective. The results obtained from this research will help to provide better guidance for the design and engineering application of ISAR jammer. |
| Keywords: intermittent-sampling repeater jamming 2-D group targets escort free-flight jammer attitude angle ISAR |
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