Pulsar/CNS integrated navigation based on federated UKF

被引：16
|
作者：
Liu, Jin [1 ]
Ma, Jie [1 ]
Tian, Jinwen [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Multispectral Informat Proc Technol, Inst Pattern Recognit & Artif Intelligence, Wuhan 430074, Peoples R China
来源：
JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS | 2010年 / 21卷 / 04期
基金：
国家高技术研究发展计划(863计划);
关键词：
autonomous navigation; celestial navigation system (CNS); pulsar; federated unscented Kalman filter (UKF); X-RAY PULSARS; SPACECRAFT NAVIGATION;
D O I：
10.3969/j.issn.1004-4132.2010.04.022
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In order to improve the autonomous navigation capability of satellite, a pulsar/CNS (celestial navigation system) integrated navigation method based on federated unscented Kalman filter (UKF) is proposed. The celestial navigation is a mature and stable navigation method. However, its position determination performance is not satisfied due to the low accuracy of horizon sensor. Single pulsar navigation is a new navigation method, which can provide highly accurate range measurements. The major drawback of single pulsar navigation is that the system is completely unobservable. As two methods are complementary to each other, the federated UKF is used here for fusing the navigation data from single pulsar navigation and CNS. Compared to the traditional celestial navigation method and single pulsar navigation, the integrated navigation method can provide better navigation performance. The simulation results demonstrate the feasibility and effectiveness of the navigation method.
引用
收藏
页码：675 / 681
页数：7
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