ECCM scheme against interrupted sampling repeater jammer based on time-frequency analysis

被引：1
|
作者：
Shixian Gong [1 ]
Xizhang Wei [1 ]
Xiang Li [1 ]
机构：
[1] School of Electronic Science and Engineering, National University of Defense Technology
来源：
JournalofSystemsEngineeringandElectronics | 2014年 / 25卷 / 06期
基金：
中国国家自然科学基金;
关键词：
interrupted sampling repeater jamming(ISRJ); de-chirping radar; time-frequency(TF); electronic counter-countermeasure(ECCM);
D O I：
暂无
中图分类号：
TN974 [雷达电子对抗];
学科分类号：
080904 ; 0810 ; 081001 ; 081002 ; 081105 ; 0826 ; 082601 ; 1104 ;
摘要：
The interrupted sampling repeater jamming(ISRJ) is an effective deception jamming method for coherent radar, especially for the wideband linear frequency modulation(LFM) radar. An electronic counter-countermeasure(ECCM) scheme is proposed to remove the ISRJ-based false targets from the pulse compression result of the de-chirping radar. Through the time-frequency(TF) analysis of the radar echo signal, it can be found that the TF characteristics of the ISRJ signal are discontinuous in the pulse duration because the ISRJ jammer needs short durations to receive the radar signal. Based on the discontinuous characteristics a particular band-pass filter can be generated by two alternative approaches to retain the true target signal and suppress the ISRJ signal. The simulation results prove the validity of the proposed ECCM scheme for the ISRJ.
引用
收藏
页码：996 / 1003
页数：8
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