摘要
本文提出了一种基于编码相位调制的逆合成孔径雷达(inverse synthetic aperture radar,ISAR)图像特征控制方法。首先通过接收天线截获ISAR信号,然后对截获信号进行快慢时间二维联合编码相位调制,最后在ISAR接收处理后可形成范围可控的压制性干扰条带。在此基础上进一步分析了码元宽度、占空比等不同调制参数对图像特征控制效果的影响,并进而推导了相应的参数设计原则。通过仿真分析,雅克-42飞机仿真数据的实验结果证明了所提方法的有效性。
In this paper,an inverse synthetic aperture radar(ISAR)image feature control method using phase coded modulation is proposed.The proposed method firstly intercepts ISAR signals via receiver antenna,then conducts two dimensional phase coded modulation on the intercepted radar signal in both fast and slow time domain.Finally,the blanket jamming strips with controllable jamming scope can be formed after ISAR processing.On this basis,the effects of modulation parameters such as the code width and the duty ratio are further analyzed,and the parameter design principles are proposed.Simulation results of Yak-42 plane data demonstrate the validity of the proposed method.
作者
吴其华
赵锋
王俊杰
徐志明
肖顺平
WU Qihua;ZHAO Feng;WANG Junjie;XU Zhiming;XIAO Shunping(School of Electronic Science,National University of Defense Technology,Changsha 410073,China)
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2023年第4期1000-1007,共8页
Systems Engineering and Electronics
基金
国家自然科学基金(61890542,62071475,62001481)
湖南省自然科学基金(2021JJ40686)资助课题。
关键词
编码调制
相位调制
图像特征控制
逆合成孔径雷达
coded modulation
phase modulation
image feature control
inverse synthetic aperture radar(ISAR)
