Shipboard Trajectory Reconstruction and Model Validation

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 obser vational 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 sys tems are selected as the research objects,on which the quantitative validation method is applied by recon structing the rocket projectile status with straggling parameters.The simulation results show that the pro posed validation method of the six-freedom trajectory simulation model is effective.