Abstract
With the development of nanosatellites, the nano star tracker has become a focus recently. The nano star tracker can only capture a few stars because of the limited size of the field of view(FOV). However, the traditional star identification algorithm does not work when the star tracker captures less than 3 stars, so it is inappropriate for the nano star tracker. To solve this contradictory problem, an attitude determination scheme for the nano star tracker is presented in this paper. It is composed of two steps, the star identification algorithm for the nano star tracker and the attitude determination based on optimal estimation. We use the attitude obtained by gyro as the prior information to design a star identification algorithm for the nano star tracker, then the identified stars are used to calculate the attitude based on the optimal estimation. Simulation results prove that the proposed scheme is practical and suitable for nano star tracker.
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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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Sun, L. (2023). An Attitude Determination Scheme for the Nano Star Tracker. In: Yan, L., Duan, H., Deng, Y. (eds) Advances in Guidance, Navigation and Control. ICGNC 2022. Lecture Notes in Electrical Engineering, vol 845. Springer, Singapore. https://doi.org/10.1007/978-981-19-6613-2_93
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DOI: https://doi.org/10.1007/978-981-19-6613-2_93
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