CAJ | 학술논문

目的研究调频引信的干扰机理,获取调频引信干扰信号设计的理论依据. 方法对正弦调频引信进行时域和频域分析,找出调频引信的信道泄漏机制,并利用数学分析设计干扰信号波形. 结果证明了由于引信接收机混频器的非线性特性,调频引信中存在信道泄漏,具体设计了正弦调频引信的干扰信号. 结论利用信道泄漏设计的干扰信号,不是使用传统的模拟回波的干扰方法,它仅依靠干扰信号自身的特点即可对正弦调频引信进行有效干扰. 作者在此只具体研究了正弦调频引信,但这种干扰原理适用于各种调频体制的引信.
목적연구조빈인신적간우궤리,획취조빈인신간우신호설계적이론의거. 방법대정현조빈인신진행시역화빈역분석,조출조빈인신적신도설루궤제,병이용수학분석설계간우신호파형. 결과증명료유우인신접수궤혼빈기적비선성특성,조빈인신중존재신도설루,구체설계료정현조빈인신적간우신호. 결론이용신도설루설계적간우신호,불시사용전통적모의회파적간우방법,타부의고간우신호자신적특점즉가대정현조빈인신진행유효간우. 작자재차지구체연구료정현조빈인신,단저충간우원리괄용우각충조빈체제적인신.
Aim To get the theory base of designing FM fuze's jamming signal, its jamming mechanism was studied. Methods A sinusoidal FM fuze was analyzed in time-domain and frequency-domain and the concept of channel leak was presented. Results It was proved that information channel leak exists in FM fuze because of the nonlinear property of the mixer. The jamming signal was designed based on the channel leak and the jamming mechanism was analyzed in detail. Conclusion This kind of jamming signal can jam the sinusoidal FM fuzes effectively just depending on the jamming signal's feature itself. It's different from the traditional jamming way of simulating echo. Though the sinusoidal FM fuze was just analyzed, the principle is applicable to all FM fuzes. At the same time, it may be used as the reference for FM radar and communication countermeasures.