雷达科学与技术
雷達科學與技術
뢰체과학여기술
RADAR SCIENCE AND TECHNOLOGY
2014年
5期
532-538
,共7页
韩国强%叶瑞芳%刘丽%代大海
韓國彊%葉瑞芳%劉麗%代大海
한국강%협서방%류려%대대해
逆合成孔径雷达%欺骗干扰%固定移频%步进移频%随机移频
逆閤成孔徑雷達%欺騙榦擾%固定移頻%步進移頻%隨機移頻
역합성공경뢰체%기편간우%고정이빈%보진이빈%수궤이빈
inverse synthetic aperture radar(ISAR)%deceptive jamming%fixed shift frequency jam-ming%stepped shift frequency jamming%random shift frequency jamming
欺骗式干扰是 ISAR对抗领域的研究热点。巧妙利用线性调频脉冲串波形时延和频移间的耦合特性,引入了一种基于DRFM移频转发的新型欺骗干扰技术,并通过对传统固定、步进及随机移频干扰分布特性的研究,提出了一种对 ISAR的修正移频干扰技术,完成了干扰输出结果从一到多的转变,能够满足新型欺骗式干扰“隐真示假”的现实需求。在此基础上,结合统一的移频干扰理论模型,设计实现了干扰系统理论框架,并结合典型的战情参数设置进行了仿真实验,结果表明该干扰样式不仅能够对典型军事目标形成有效保护,而且能够形成更加复杂的干扰纹理,进一步验证了干扰样式的有效性和科学性。
欺騙式榦擾是 ISAR對抗領域的研究熱點。巧妙利用線性調頻脈遲串波形時延和頻移間的耦閤特性,引入瞭一種基于DRFM移頻轉髮的新型欺騙榦擾技術,併通過對傳統固定、步進及隨機移頻榦擾分佈特性的研究,提齣瞭一種對 ISAR的脩正移頻榦擾技術,完成瞭榦擾輸齣結果從一到多的轉變,能夠滿足新型欺騙式榦擾“隱真示假”的現實需求。在此基礎上,結閤統一的移頻榦擾理論模型,設計實現瞭榦擾繫統理論框架,併結閤典型的戰情參數設置進行瞭倣真實驗,結果錶明該榦擾樣式不僅能夠對典型軍事目標形成有效保護,而且能夠形成更加複雜的榦擾紋理,進一步驗證瞭榦擾樣式的有效性和科學性。
기편식간우시 ISAR대항영역적연구열점。교묘이용선성조빈맥충천파형시연화빈이간적우합특성,인입료일충기우DRFM이빈전발적신형기편간우기술,병통과대전통고정、보진급수궤이빈간우분포특성적연구,제출료일충대 ISAR적수정이빈간우기술,완성료간우수출결과종일도다적전변,능구만족신형기편식간우“은진시가”적현실수구。재차기출상,결합통일적이빈간우이론모형,설계실현료간우계통이론광가,병결합전형적전정삼수설치진행료방진실험,결과표명해간우양식불부능구대전형군사목표형성유효보호,이차능구형성경가복잡적간우문리,진일보험증료간우양식적유효성화과학성。
Deceptive jamming is a hot research topic in the area of ISAR electronic countermeasures (ECM).By utilizing the coupling relationship between the time delay and shift frequency of linear frequency modulation(LFM)waveform,a new deceptive jamming based on shift frequency repeater mode through the unit of DRFM is introduced in this paper.Through the research on the distribution characters of the fixed shift frequency jamming,the stepped shift frequency jamming and the random shift frequency jamming,a jamming method with modified shift frequency to ISAR is proposed.The jamming output changes from one to multiple distribution,which can meet the great need of new deceptive jamming by camouflaging real tar-gets and revealing decoy.On this basis,the system framework of jammer is constructed according to the uni-form theoretical model of shift frequency jamming.Finally,the simulation test is carried out based on typical scenario and parameters configuration,the results show that the jamming can not only effectively protect typ-ical military targets,but also produce much more complex texture.The result reveals that the jamming is of high effectiveness and scientificalness.