定位定向误差对弹道导弹主动段运动的影响分析

Influence Analysis of Ballistic Missile Ascend Phase Motion Considering Positioning and Orientation Error

指出初始定位定向参数误差对导弹运动的影响主要表现在几何偏移、初值偏差和引力偏差,基于小偏差线性化方法,建立了考虑3种偏差下定位定向误差的影响分析模型,导出了初始偏差和引力偏差的快速计算方法.结果表明,该方法计算速度快,计算精度高,速度偏差逼近的方法误差小于10%,位置偏差逼近的方法误差小于1%.

Position and orientation error mainly affects geometry, initial state and force of missile. Based on linearization method, an integrated analytic model was built up in view of three factors, and a rapid calculation method about initial warp and force warp of missile was presented. Experiment results show that the method has high calculation rate. Velocity deviation evaluation is less than 10%, and position deviation evaluation is less than 1%.