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Star Tracker Geometric Calibration Through Full-State Estimation Including Attitude

Star Tracker Geometric Calibration Through Full-State Estimation Including Attitude A star tracker calibration method using star images is presented in this paper. Unlike previous works, the proposed method estimates all parameters and the attitudes at once in a single least-squares formulation for the optimal calibration, which can be easily converted to a recursive estimation form. In addition, this paper presents a method to estimate the overall star tracker performance for attitude determination from the calibration results. Since the proposed method uses star images only, it can be applied to both on-orbit and ground star tracker calibration. The simulations show improvements in calibration performance about four times compared to the previous calibration method. The calibration experiments with actual star images are conducted to test its application. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Aeronautical and Space Sciences Springer Journals

Star Tracker Geometric Calibration Through Full-State Estimation Including Attitude

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References (23)

Publisher
Springer Journals
Copyright
Copyright © The Author(s) 2021
ISSN
2093-274X
eISSN
2093-2480
DOI
10.1007/s42405-021-00432-5
Publisher site
See Article on Publisher Site

Abstract

A star tracker calibration method using star images is presented in this paper. Unlike previous works, the proposed method estimates all parameters and the attitudes at once in a single least-squares formulation for the optimal calibration, which can be easily converted to a recursive estimation form. In addition, this paper presents a method to estimate the overall star tracker performance for attitude determination from the calibration results. Since the proposed method uses star images only, it can be applied to both on-orbit and ground star tracker calibration. The simulations show improvements in calibration performance about four times compared to the previous calibration method. The calibration experiments with actual star images are conducted to test its application.

Journal

International Journal of Aeronautical and Space SciencesSpringer Journals

Published: Feb 1, 2022

Keywords: Star tracker; Calibration; Nonlinear least-squares; Attitude determination

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