国防科技大学学报2017，Vol.39Issue(4)：69-76,8.DOI:10.11887/j.cn.201704011
频率分集阵列的有源假目标鉴别方法
Deceptive jamming suppression and discrimination based on frequency diversity array
摘要
Abstract
Considering the suppression of transmitting deceptive jamming in radar countermeasure, a discrimination method based on frequency diversity array was proposed.In FDA(frequency diversity array) radar, the phase difference between different element of echo was dependent on both range and angle,which implies that the false targets could be suppressed due to the mismatch in either range or angle.The phase difference formula of echo, jamming and mixed signal were derived, the influence on the phase difference of matched filtering, frequency shift and signal mixing was analyzed in detailed, and the entire identifiable process was introduced.The effectiveness of our proposed scheme in suppressing jamming was demonstrated via theoretical analysis and computer simulations.Results show that the proposed method can discriminate false targets successfully in different scenarios and has a better environmental adaptation.关键词
雷达/转发式干扰/频率分集阵列/相位差Key words
radar/repeater jamming/frequency diversity array/phase difference分类
信息技术与安全科学引用本文复制引用
张昭建,谢军伟,李欣,盛川,胡祺勇..频率分集阵列的有源假目标鉴别方法[J].国防科技大学学报,2017,39(4):69-76,8.基金项目
国家自然科学基金资助项目(61501500) （61501500）
