摘要
飞行器在再入段的弹道可用较为精确的动力学模型描述,在地心直角坐标系下建立飞行器再入段的动力学模型,利用UKF对弹道式再入目标的弹道进行估计,并与三站几何解析法的解算结果进行对比,仿真结果表明,基于动力学模型的UKF可以有效地提高再入目标弹道的估计精度。
The trajectory of spacecraft in the reentry phase can be represented approximately by the dynamical model,and the reentry dynamical model is established in the earth-centered fixed coordinates.The UKF is used to estimate the trajectory of ballistic reentry targets in the spacecraft dynamic model,then the results are compared with the outcomes of traditional 3RR· method.The simulation result shows that the estimation precision of reentry target trajectory can be effectively improved by using the UKF based on the dynamical model.
出处
《航天控制》
CSCD
北大核心
2011年第3期28-32,共5页
Aerospace Control
