Autonomous navigation algorithm for spacecrafts based on dual quaternion

Kezhao Li; Jianping Yuan; Xiaokui Yue; Qun Fang

doi:10.1117/12.774862

10 November 2007 Autonomous navigation algorithm for spacecrafts based on dual quaternion

Kezhao Li, Jianping Yuan, Xiaokui Yue, Qun Fang

Proceedings Volume 6795, Second International Conference on Space Information Technology; 67953K (2007) https://doi.org/10.1117/12.774862
Event: Second International Conference on Spatial Information Technology, 2007, Wuhan, China

Abstract

Celestial Navigation System (CNS), Inertial Navigation System (INS), Global Navigation Satellite System (GNSS), such as GPS, GLONASS, GALILEO and Compass etc, and the integrations of them are some methods of autonomous navigation for space. But these methods must be depended on the high speed links of the communications network. Moreover, the precision of CNS is always worse, and can not meet the rigorous requirement of the space activities. INS can not be used for long-term space navigation applications for its errors being accumulated. High accuracy can be met by Carrier Differential Global Positioning System (CDGPS), but it is difficult to calculate the ambiguities of CDGPS. Fortunately, autonomous relative navigation based on machine vision is a direction all over the world currently, and is very suitable for autonomous spacecraft navigation because it has some advantages, such as low-cost, high precision, autonomous ability, easy practicality etc. In this paper, on the basis of the attitude dynamics of spacecrafts and the theory of machine vision, an autonomous relative navigation algorithm for spacecrafts based on dual quaternion and EKF is proposed. The basis transform unit of this algorithm is feature line. Moreover, this algorithm is used to calculate both relative position and attitude organically, and the disadvantages of those algorithms, in which, relative position and attitude must be deal with separately, are overcome. Finally, the simulations show that this algorithm is an accurate valid method for space navigation applications.

Citation Download Citation

Kezhao Li, Jianping Yuan, Xiaokui Yue, and Qun Fang "Autonomous navigation algorithm for spacecrafts based on dual quaternion", Proc. SPIE 6795, Second International Conference on Space Information Technology, 67953K (10 November 2007); https://doi.org/10.1117/12.774862

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