摘要
分析了GPS卫星预报星历,在比较分析EKF和UKF优缺点的基础上,将UKF引入GPS卫星轨道预报研究中。数值模拟和结果分析表明,UKF方法预报更稳定,能有效地提高轨道预报精度和稳定性。
The paper analyze the GPS ephemeris, on the base of comparing hybrid orbit prediction method is investigated based on UKF in this paper. EKF to UKF, a It is shown that UKF is more stable, and improved the orbit predicted precision. It offers a new idea for some others satellites orbit determination as Galileo.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2008年第3期249-252,共4页
Geomatics and Information Science of Wuhan University
基金
香港RGC基金资助项目(B-Q934)
山东省基础地理信息与数字化技术重点实验室开放研究基金资助项目(SD060804)
关键词
UKF
EKF
卫星轨道预报
动力学模型
状态转移矩阵
unscented Kalman filter
extended Kalman filter
satellite orbit prediction
dynamic model
state transition matrix
