中文摘要：

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.

英文摘要：

Pseudo-random code fuze is an important development direction of radio fuze due to its excellent performances,such as strong anti-jamming ability,precise detecting distance and velocity performance.How to analyze and evaluate the jamming effectiveness of the pseudo-random code fuze objectively,accurately and quantificationally,as well as how to improve jamming and anti-jamming ability,are an important project concerned about by the two parties of fuze countermeasure in scientific research,production and testing,etc.Jamming effect of pseudo-random code phase modulation and sine frequency modulation（PRCPM-SFM）compound continuous wave fuze was researched under the deceptive jamming of simulation echo wave.The jamming principle of PRCPM-SFM compound continuous wave fuze was analyzed according to the analysis model of deceptive jamming effect,the correlator output signal expression of the compound fuze was deduced under deceptive jamming,and factors influencing jamming effect were discussed.The research results show that the jamming effect of PRCPM-SFM compound continuous wave fuze could be enhanced by correctly detecting the pseudo-random code type of the compound fuze,decreasing error code number,and reducing the code-element width error and the deceptive Doppler frequency.The research provided theory foundation for the two parties of the fuze countermeasure on improvingjamming and anti-jamming ability;meanwhile,the results obtained from this dissertation were valuable for studying the pseudo-random code fuze and other system fuzes further.