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伪码体制引信由于具有良好的抗干扰能力和测距、测速能力,使其成为引信工作体制中重要的发展方向之一.如何客观、准确、定量地分析和评价对抗装备对伪码体制引信的干扰效果,如何提高干扰和抗干扰能力,是引信对抗双方在科研、生产、试验等环节广泛关注的重要课题.研究模拟回波欺骗性干扰对伪码调相与正弦调频复合调制连续波引信的干扰效果.建立了欺骗性干扰效果分析模型,分析了欺骗性干扰对伪码调相与正弦调频复合调制连续波引信的干扰机理,推导了欺骗性干扰存在时复合引信相关器输出信号的形式,分析了影响复合引信欺骗性干扰效果的因素,研究结果表明,正确侦测复合引信的伪码码型、减少误码数、减小码元宽度误差和欺骗性多普勒频率,能够提高对复合引信的欺骗性干扰效果.研究伪码复合体制引信的干扰效果为该类引信对抗双方在提高干扰、抗干扰能力方面提供了理论依据,同时,本文的研究工作对伪码体制及其他体制引信的进一步研制也具有重要的理论指导意义和借鉴作用.
Due to its good ability of anti-interference and ranging and speed-measuring, the fictitious code system fuze makes it one of the important development directions in fuze work system.How to objectively, accurately and quantitatively analyze and evaluate the countermeasure equipment Interference effect, how to improve the interference and anti-interference ability, it is an important topic that fuze confrontation both in scientific research, production, experiment and other aspects of extensive attention.Research simulating echo deceptive interference on pseudo-code phase modulation and sinusoidal frequency modulation complex modulation continuous-wave fuze Interference effect.A spoofed interference effect analysis model is established and the interference mechanism of deceptive interference on pseudo-code phase modulation and sinusoidal frequency modulation (FM) modulated CW fuze is analyzed. The form of the composite fuze correlator output signal is deduced when fraudulent interference exists. The factors affecting the fraudulent jamming of the composite fuze are analyzed. The results show that correctly detecting the pseudo-code pattern of composite fuze, reducing the number of errors, reducing the error of symbol width and deceptive Doppler frequency, Fuze fraudulent interference effect.Studies on the pseudo-code composite fuze interference effect of such fuze confrontation in both parties High interference, anti-interference ability provides a theoretical basis, at the same time, this research work on the pseudo-code system and other system fuze further development also has important theoretical significance and reference.