伪码引信瞄准式欺骗性干扰机干扰效果的影响因素研究

伪码引信已广泛地应用在舰空导弹和地空导弹中，因此研究如何有效地干扰该引信十分必要。首先给出了瞄准式欺骗性干扰机的实现原理框图，介绍了主要部件的硬件电路实现，包括伪码引信信号的解调、伪码序列识别、干扰波形的调制发射等。重点研究了误码、码元宽度误差和延迟误差各自单独存在时对干扰机干扰效果的影响，得出了在成功干扰情况下各自所允许的最大值。最后分析了上述影响因素的产生原因，并给出了相应的减小方法。

Research on Factors Influencing Jamming Effect of Spot and Deception Jammer to PN Fuze

Pseudo-random code phase-modulation fuze is applied widely in aeronautical missile and SAM, so how to jam this fuze is very necessary to study. Firstly, the block diagram of spot and deception jammer was given in the paper. The key hardware circuit implementation was presented. It included demodulation of pseudo-random code phase-modulation fuze signal, recognition of pseudo-random code, modulation and transmission of interfered waveform. The influence on jamming effect of jammer caused by error bit,bit width error and delay error was studied emphatically when they work respectively. The maximum value allowed is got in the case of successful jamming. Finally, the reasons causing above influencing factors are analyzed and corresponding reducing solutions are given.