弹道式地地导弹精度计算公式及其拟合方法

COMPUTING FORMULA AND FITTING METHOD OF THE SURFACE-TO-SURFACE BALLISTIC MISSILE ACCURACY

归纳和总结厂弹道式地地导弹的精度变化规律，根据这些规律和谐波分析理论建立了导弹精度计算公式。文中根据函数逼近理沦，提出了确定谐波函数阶次的方法和具体的拟合步骤。应用这种方法导出了实际导弹的精度计算拟合公式.采用这些公式和采用弹道计算方法分别计算任意相同条件下的导弹精度值.其相对误差小于1%。本文提出的精度计算拟合公式是简便实用的.

To compute a missile accuracy is to solve many complicated trajectory differential equations in a long time. On condition that the computing error is allowed, it is a good idea to substitute solving these differential equations by computing a simple formula. In this paper, the accuracy variation law of the surface to surface ballistic missile is summarized. Based on the law and harmonic analysis theory, the missile accuracy model for computing is structured. The order of harmonic function is selected, and the method of fitting is proposed by using approximation theory. The presented method is used for structuring real missile accuracy computing formula. Computing a missile accuracy under same conditions by respectively using the method of computing trajectory and fit formulas, the maximal approximate error is less than 1%. The proposed formula is simple and practical.