垂线偏差对弹道落点精度的影响分析

针对垂线偏差对弹道落点精度的影响,结合弹道飞行器质点动力学模型,系统分析了垂线偏差对发射坐标系、初始参数、飞行过程中受力、程序角控制基准、地心坐标系弹道参数等的影响机理,并建立了相应的数学模型。进一步,基于给定的弹道落点偏差计算方法,以某飞行弹道为例,定量给出了不同发射点大地纬度、不同发射方位角下垂线偏差引起的落点偏差。本文研究工作对提高弹道飞行器落点精度具有重要参考意义。

Analysis on the Effects of the Vertical Deflection for Trajectory Impact Accuracy

In view of the effects of the vertical deflection for trajectory impact accuracy, the influence mechanism of the launching coordinate system, the initial parameter, the force during the flight, the control criteria of the program angle, and the trajectory parameter under the geocentric coordinate system are analyzed respectively in this paper. Then, the mathematical models of the effects of the vertical deflection are established. Furthermore, based on the given flight trajectory, the impact errors under different geodetic latitude of launch point and different launch azimuth angle are presented quantificationally. The research of this paper possesses important reference significance in order to improve the impact accuracy of the ballistic vehicle.