基于曲线拟合的通用仿真弹道设计方法研究

Research on Universal Simulation Trajectory Design Method Based on Curve Fitting

针对传统的六自由度模型计算复杂且各型号间弹道无法通用,难以满足任务级作战仿真需求的现状,拓展了弹道分段形式,通过弹道特征点将弹道分段,利用少量初始数据确定缩放系数和曲线拟合系数,构建了分段三次曲线拟合方程,快速拟合出弹道曲线。仿真结果表明,本方法需要的初始数据较少,但该方法拟合精度在95%以上,能够快速高效生成通用弹道,满足任务级弹道仿真的需要。

The traditional six DOF model is computed complicatedly and the trajectories between models are not common,which is difficult to meet the task-level combat simulation requirements.Therefore,the trajectory is segmented by trajectory feature points.And the scaling coefficient and curve fitting coefficient are established by using a small amount of initial data.The sub-cubic curve fitting equation is established and the trajectory curve is fitted quickly.Simulation results show that the method has more than95%fitting accuracy with a small amount of initial data.It can quickly and efficiently generate a common trajectory and can be used for task-level trajectory simulation to meet the requirements of the task-level trajectory simulation.