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针对影响干扰效果的因素——干扰机功率、假目标设置距离、干扰激光超前量,推导了所需干扰功率的表达式,通过建立真、假目标和导引头之间的位置关系模型,讨论了假目标的设置距离与导引头高度、导引头光轴高低角和方位角的关系,得出一般应用条件下,假目标的设置距离。分析并得到了干扰信号与制导信号的概率密度函数,给出针对不同波门宽度的时间超前量的最优值,得出减小干扰信号的时间稳定性可使干扰信号进入波门概率增加的结论。
According to the factors that affect the jamming effect, such as jammer power, set distance of false target and interference laser lead, the expression of required interference power is deduced. By setting up the positional relationship model between true target, false target and seeker The relationship between the setting distance of false target and the height of seeker and the angle of azimuth and azimuth of optical axis of seeker is obtained. The setting distance of false target under general application condition is obtained. The probability density function of the interference signal and the guidance signal is analyzed and the optimal value of the timing advance for the different gate widths is given. It is concluded that reducing the time stability of the interference signal can increase the probability of the interference signal entering the wave gate in conclusion.