摘要
基于X射线脉冲星的航天器导航是新的自主导航技术。鉴于该导航系统所建的状态方程和测量方程都是非线性的,本文给出在X射线脉冲星导航中采用UKF(Unscented Kalman Filter)算法仿真研究,并与传统的EKF(Extended Kalman Filter)算法进行对比分析,仿真结果显示,采用UKF算法时的导航精度比EKF算法有显著提高。
The X-ray pulsar-based spacecraft navigation is a new kind of autonomous navigation technology.According to the non-linear state equation and the measure equation of this system,the research of applying UKF to the X-ray pulsar-based navigation is implemented,and the algorithm using UKF is compared with the conventional EKF algorithm.The simulation results show that the UKF algorithm improves the navigation precision notably than the EKF algorithm.
出处
《航天控制》
CSCD
北大核心
2010年第6期33-37,共5页
Aerospace Control
