基于数值积分法的弹道导弹落点实时预测

摘要

In order to forecast the impact point of intercontinental ballistic missile exactly in time and show the deviation visually to the center of shooting range, this article based on numerical methods of integration introduces the forecast method for the impact point of ballistic missile. Eliminate the effects of disturbing gravity on Reentry trajectory of ballistic missile by the measurement data from the photoelec-trical theodolite. Design a simulation-system for forecasting the impact point associated with the technology of Direct3D. Experimental results indicate that this method has a high precision and the system can simulate the process of the moving target realistically and show the impact point directly. It can be used as criterion by operating personnel. Meet the challenge of forecasting and displaying the impact point of ballistic missile.%为了及时准确预测洲际导弹再入段落点,直观、清晰地为靶场指控中心呈现落点偏差；以数值积分法为基础,通过使用光电经纬仪交会测量数据修正预测结果来排除扰动引力对预测结果的影响,实现对弹体落点的精确预测,并结合Direct3D图形编程技术设计落点预测模拟显示系统；实验结果表明:该方法预测误差≤50 m,模拟目标运动过程逼真、平稳,落点显示直观,可作为操作人员的预判依据,满足了靶场测量过程中实时预测和显示弹体落点的要求.