一、前言影响弹道式导弹制导精度的主要原因是制导系统的工具误差.产生工具误差的因素较多、主要可分为两大类:一类是通过可测环境条件列写误差模型的因素,即根据过载列写的误差模型类型.另一类是环境因素难以测定的随机扰动产生的工具误差类型,如温度梯度、 I. INTRODUCTION The main reason that influences ballistic guidance accuracy of ballistic missiles is the error of the guidance system tools. There are many factors that cause the tool error and can be mainly divided into two categories: one is the factor of writing the error model through measurable environmental conditions, That is, the type of error model written according to overload and the other type of tool error caused by stochastic disturbance such as temperature gradient,