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Proceedings Paper

New method for the autonomous celestial navigation of lunar explorer based on the unscented Kalman filter
Author(s): Jiancheng Fang; Yu Zhang
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Paper Abstract

Celestial Navigation is a completely autonomous navigation method for spacecraft. When the Extended Kalman filter is applied to the autonomous celestial navigation, the state and measurement equations need to be linearized. The precision of the estimation isn't fine because of the truncated error of the high-order items introduced by linearization. Unscented Kalman filtering is a new method aimed at nonlinear systems. It is applied to the autonomous celestial navigation of the lunar explorer in this paper, and the simulation is studied based on the Cartesian coordinates. The results demonstrate that the characteristic of the Unscented Kalman filtering is superior to the Extended Kalman filter.

Paper Details

Date Published: 2 September 2003
PDF: 7 pages
Proc. SPIE 5253, Fifth International Symposium on Instrumentation and Control Technology, (2 September 2003); doi: 10.1117/12.522116
Show Author Affiliations
Jiancheng Fang, Beijing Univ. of Aeronautics and Astronautics (China)
Yu Zhang, Beijing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 5253:
Fifth International Symposium on Instrumentation and Control Technology
Guangjun Zhang; Huijie Zhao; Zhongyu Wang, Editor(s)

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