基于脉冲星的日地系平动点轨道自主导航研究

	基于脉冲星的日地系平动点轨道自主导航研究
	杨成伟 ; 郑建华 ; 李明涛 ; 邓新坪
刊名	空间科学学报
	2013
卷号	33 期号:1 页码:79-84
关键词	X射线脉冲星平动点 Halo轨道自主导航 UD分解无迹卡尔曼滤波
ISSN号	0254-6124
其他题名	Autonomous Navigation Based on Pulsar in Libration Point Orbit of Sun-Earth System
通讯作者	北京8701信箱
中文摘要	给出一种利用X射线脉冲星的平动点轨道自主导航算法. 分析了X射线脉冲星导航原理, 以脉冲到达时间差值为基本观测量, 建立导航系统观测方程. 在高精度星历模型下, 对日地系L1点Halo轨道建立数学模型, 利用基于UD分解的无迹卡尔曼滤波方法进行导航定位, 并研究了摄动因素对导航结果的影响. 仿真结果表明, 在日地系平动点轨道的自主导航中, X射线脉冲星导航是可行的.
英文摘要	The application of X-ray pulsar navigation in libration point orbit was discussed. The principle of X-ray pulsar autonomous navigation was analyzed. Difference between the real time and the estimated time of pulse arrival was regarded as the basal measurement. The system model was the full ephemeris dynamic model of Halo orbit around L1 point of the Sun-Earth system. The Unscented Kalman Filter (UKF) based on UD factorization was applied to estimate the state of the system. Perturbation factors were discussed to analyze their influence on navigation precision. The simulation results demonstrate that this algorithm is feasible for the autonomous libration point orbit determination in the Sun-Earth system. The method that applies full ephemeris dynamic model and X-ray pulsar-based navigation principle can accomplish the autonomous navigation mission in the libration orbits. Besides, the navigation results are able to converge and the accuracy is enough to meet the navigation demand.
学科主题	空间技术
语种	中文
内容类型	期刊论文
源URL	[http://ir.cssar.ac.cn/handle/122/728]
专题	国家空间科学中心_空间技术部
推荐引用方式 GB/T 7714	杨成伟,郑建华,李明涛,等. 基于脉冲星的日地系平动点轨道自主导航研究[J]. 空间科学学报,2013,33(1):79-84.
APA	杨成伟,郑建华,李明涛,&邓新坪.(2013).基于脉冲星的日地系平动点轨道自主导航研究.空间科学学报,33(1),79-84.
MLA	杨成伟,et al."基于脉冲星的日地系平动点轨道自主导航研究".空间科学学报 33.1(2013):79-84.