反舰导弹侧向脱靶量分析

ANALYSIS OF LATERAL MISSDISTANCE FOR ANTISHIP MISSILE

本文用CADET(Covariance Analysis Describing Function Technique)即协方差分析描述函数法分析了反舰导弹侧向脱靶量(脱靶距离均值和均方散布的总称)问题。首先描述了影响脱靶量的侧向阵风和目标机动等因素的随机特性。然后由CADET方程计算出在各种随机干扰作用下导弹的脱靶量,从而确定影响脱靶量的主要因素。同时用Monte-Carlo法进行了验证,得到了比较满意的结果。最后分析了在干扰因素作用下,导弹的脱靶量与导引比的关系。通过CADET方法计算的这些结果,可以为型号的改进和导弹制导性能的仿真评定提供依据。

An analysis of missdistance for antiship missile has been carded out with CADET(Covariance Analysis Describing Function Technique) method. First, the random factors affecting the missdistance such as lateral gust, target maneuver and so on have been described, then the missdistance caused by a variety of random disturbances has been calculated with CADET equation. Therefore, the main factors affecting the missdistance have been defined and verified by the Monte-Carlo method. It is found that the results are mostly satisfactory. Finally, the relationship between missdistance and guidance ratio has been discussed in connection with disturbance. The results obtained with CADET method will provide the basis for improvement and simulation evaluation of the missile system.