摘要
随着目标探测和识别手段的快速发展,弹道导弹在飞行中段被发现和拦截的概率大大提高,必须丰富干扰掩护手段以提高其突防概率。利用弹道目标姿态角和ISAR成像质量的联系性,提出了基于伴飞式干扰机的姿态欺骗方法。介绍了ISAR成像理论和伴飞式干扰模型,进行了干扰功率的分析,在干扰机具有一定空间自由性的基础上推导了最佳干扰姿态角。利用得到的最佳干扰姿态角进行干扰机的释放参数反解,最后以真实对抗场景进行了干扰持续时间的分析。仿真结果表明,该方法能长时间在ISAR上产生比真实目标图像更清晰好认的干扰像。
Ballistic missile is one of the most intimidating weapons of modern warfare. However, with the development of target recognition methods, it more likely is found in the midcourse. Therefore it is necessary to enrich its interference methods to improve the probability of penetration. Using the relationship between the attitude angle and the imaging quality of the ballistic target, an attitude angle deception method based on the escort jammer is proposed. The basic ISAR imaging principle is introduced along with the model of the escort jamming. The jamming power is analyzed, and the optimal attitude angle of jamming is deduced based on the some spatial freedom of jammer. The best angle obtained is used to solve the parameters when the jammer is released. Finally, an analysis of the jamming duration is performed in a real countermeasure. The simulation results show that this method can produce a sharper-and better-recognized jamming image on the ISAR than the real target image for a long time.
作者
黎波涛
董文锋
都元松
徐鹏
LI Botao;DONG Wenfeng;DU Yuansong;XU Peng(Air Force Early Warning Academy, Wuhan 430019, China)
出处
《雷达科学与技术》
北大核心
2019年第2期184-190,共7页
Radar Science and Technology
关键词
弹道中段
伴飞式干扰机
姿态角
逆合成孔径雷达
midcourse
escort jammer
attitude angle
inverse synthetic aperture radar (ISAR)
