New method for the autonomous celestial navigation of lunar explorer based on the unscented Kalman filter

Jiancheng Fang; Yu Zhang

doi:10.1117/12.522116

2 September 2003 New method for the autonomous celestial navigation of lunar explorer based on the unscented Kalman filter

Jiancheng Fang, Yu Zhang

Author Affiliations +

Proceedings Volume 5253, Fifth International Symposium on Instrumentation and Control Technology; (2003) https://doi.org/10.1117/12.522116
Event: Fifth International Symposium on Instrumentation and Control Technology, 2003, Beijing, China

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.

Citation Download Citation

Jiancheng Fang and Yu Zhang "New method for the autonomous celestial navigation of lunar explorer based on the unscented Kalman filter", Proc. SPIE 5253, Fifth International Symposium on Instrumentation and Control Technology, (2 September 2003); https://doi.org/10.1117/12.522116

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