Mr. Hongchi Sun Profile

Hongchi Sun

at Harbin Institute of Technology

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Proceedings Article | 5 March 2018 Paper

Design of all-weather celestial navigation system

Hongchi Sun, Rongjun Mu, Huajun Du, Peng Wu

Proceedings Volume 10710, 107101S (2018) https://doi.org/10.1117/12.2317547

KEYWORDS: Navigation systems, Satellites, Stars, Satellite communications, Satellite navigation systems, Star sensors, Computer simulations, Image processing

Read Abstract +

In order to realize autonomous navigation in the atmosphere, an all-weather celestial navigation system is designed. The research of celestial navigation system include discrimination method of comentropy and the adaptive navigation algorithm based on the P value. The discrimination method of comentropy is studied to realize the independent switching of two celestial navigation modes, starlight and radio. Finally, an adaptive filtering algorithm based on P value is proposed, which can greatly improve the disturbance rejection capability of the system. The experimental results show that the accuracy of the three axis attitude is better than 10″, and it can work all weather. In perturbation environment, the position accuracy of the integrated navigation system can be increased 20% comparing with the traditional method. It basically meets the requirements of the all-weather celestial navigation system, and it has the ability of stability, reliability, high accuracy and strong anti-interference.

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