摘要
针对解线调的特点,提出一种附加调制的相干干扰方法,对接收的雷达信号产生附加的脉冲频率调制后转发,使ISAR解线调后的输出变成频率跳变的信号,即产生跳变的频域距离像。根据调制参数不同,可以灵活产生假目标欺骗干扰或者覆盖干扰效果。阐述了脉冲加权调频干扰的机理,讨论了这种方法相对于传统噪声压制干扰在干扰功率上的优势,进行了仿真实验,给出了仿真结果并进行了分析。
A new method is proposed for jamming ISAR, which is pulse frequency modulation jamming. Some pulse signals modulate the receiving signal in frequency domain, and then the resulting signal is retransmitted. The frequency of the dechirped output is varying. Thus, ISAR will produce the false target image or cover jamming. This jamming can obtain the processing gain, so it can save jamming power. Theoretical analysis and computer simulation justify the validity and efficiency of the new jamming technique.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2008年第2期249-252,共4页
Systems Engineering and Electronics
基金
国家"973"项目资助课题(513010101)
关键词
解线调处理
调频干扰
逆合成孔径雷达
假目标欺骗干扰
覆盖干扰
dechirping
frequency modulation jamming
inverse synthetic aperture radar
false target deceptive jamming
cover jamming
