一、引言导弹寻的制导系统是一个复杂的,具有随机噪声输入的非线性时变系统.无论是在制导系统初步设计和综合时所进行的回路最佳参数选择,灵敏度研究,非线性特性影响的估计,还是在最终设计阶段给出导弹武器系统的导引精度,定量地估算各种因素对导引精度的影响等一系列工作中,都要涉及到对系统进行统计分析的问题. I. INTRODUCTION The guided missile guidance system is a complex nonlinear time-varying system with random noise input.Whether it is the best choice of circuit parameters, sensitivity study and non-linearity influence in the initial design and synthesis of guidance system Or in the final design stage, it gives the guidance precision of the missile weapon system, and quantitatively estimates the influence of various factors on the guidance precision. In a series of work, the problems concerning the statistical analysis of the system are all involved.