舰载火箭弹弹道重构与模型验证

Shipboard Trajectory Reconstruction and Model Validation

为了验证火箭弹系统六自由度仿真模型的可信性,建立用于弹道重构的系统状态模型和基于GPS观测数据的量测模型,运用无迹卡尔曼滤波(UKF)算法和TIC不等式系数法,探讨仿真模型静、动态性能的验证方法。以某型舰载火箭弹系统为研究对象,通过重构火箭弹飞行状态的误差参数,对其仿真模型进行定量验证。仿真结果表明,利用弹道重构方法对六自由度弹道仿真模型进行验证是有效的。

In order to validate the model of six-freedom simulation for the rocket projectile system, the system state model for trajectory reconstruction, as well as the observation model based on the GPS observational data are established. Particularly, The Unscented Kalman Filtenng （UKF） algorithm and the Theil Inequality Coefficient（TIC） method are utilized to investigate the validation techniques for both the static performance and dynamic performance. To test the simulation model, several rocket projectile systems are selected as the research objects, on which the quantitative validation method is applied by reconstructing the rocket projectile status with straggling parameters. The simulation results show that the proposed validation method of the six-freedom trajectory simulation model is effective.