摘要
根据线性调频雷达发射信号的特点,提出一种新的应答式干扰技术——锯齿波加权调频干扰,即干扰机对接收到的雷达照射信号附加锯齿波频率调制,将调频结果放大之后转发出去。根据调制参数不同,这种干扰可以灵活产生假目标欺骗和覆盖干扰两种效果。锯齿波加权调频干扰信号与雷达照射信号具有相似的频域特性,因此它能够利用脉冲压缩处理增益,降低干扰功率要求。
A new method is proposed for jamming the linear frequency modulation （LFM） radar, which is based on the feature of the LFM radar signals and is named weighted frequency modulated jamming. The jammer receives the radar signal and modulates it in the frequency domain. Then the modulated signal is retransmitted. It can produce false targets deceptive jamming or cover jamming according to the modulating parameters. This technique requires lower jamming power. Theoretical analysis and computer simulation justify the validity and efficiency of the new jamming technique.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2007年第2期209-212,218,共5页
Journal of Xidian University
基金
国家部委973项目资助(513010101)
关键词
电子对抗
加权调频干扰
线性调频信号
锯齿波调频
假目标欺骗
覆盖干扰
electronic countermeasures
weighted frequency modulated jamming
LFM signals
sawtooth FM
false target deceptive jamming
cover jamming
