近程导弹瞄准线转动角速度预测模型及误差分析

摘要

近程导弹采用预测瞄准线开环控制,瞄准线的预测精度直接决定导弹的命中精度.为研究瞄准线转动角速度预测误差对导弹制导精度的影响,根据捷联惯导系统坐标变换原理,建立了近程导弹瞄准线转动角速度的预测模型和预测误差模型;仿真分析了各项误差源对预测误差和命中精度的影响;提出了惯性器件的精度搭配和精度要求.研究成果为全面研究近程导弹误差模型和采取减小、补偿误差措施提供理论依据.%For the short range missile adopting open-loop control flies along the forecast line-of-sight (LOS),the forecast precision determines the missile hit precision.In order to study the influence of the LOS angular speed forecast error on the guidance precision,the forecast model and forecast error model of the LOS's angular speed were established,based on the coordinate transformation principle of strapdown inertial guidance system;the influences of the error source on forecast error and hit pricision were simulated and analyzed;the precision match and require ment of inertial devices were proposed.The investigated results provide theoretical basis for studying missile error model and the method of reducing and compensating error.