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Canglong Zhou

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Proceedings Article | 5 November 2020 Paper

The athermalization design of an airborne all-day star sensor optical system

Canglong Zhou, Hu Wang, Yaoke Xue, Yang Shen, Yue Pan

Proceedings Volume 11570, 115700V (2020) https://doi.org/10.1117/12.2580288

KEYWORDS: Temperature metrology, Star sensors, Imaging systems, Geometrical optics

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With the continuous development of navigation technology, celestial navigation system has gradually become the essential of celestial navigation system with its advantages of autonomy is strong, good concealment and high precision. The key component of the astronomical navigation system is the all-day star sensor. With the improvement of navigation accuracy, higher requirements have been put forward for the design of all-day star sensor, which is required to be able to work normally within 24 hours. The temperature range of the star sensor working on the airborne platform is very wide, and the temperature has a great impact on the imaging performance of the star sensor, thus affecting the positioning accuracy of navigation. Therefore, it is of great practical significance to ensure that its optical performance does not change within such a wide range of temperature, so as to significantly improve its navigation and positioning accuracy.

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