Structural parameter calibration method for multiple field of view star tracker

被引：0

作者：

Sun, Li ^{[1
]}

Jiang, Jie ^{[1
]}

Li, Jian ^{[1
]}

Ji, Feilong ^{[1
]}

机构：

[1] School of Instrumentation Science and Opto-Electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing

来源：

Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2015年 / 41卷 / 08期

关键词：

Angular distance; Attitude determination; Calibration; Inter star-angle statistical residual; Structural parameters;

D O I：

10.13700/j.bh.1001-5965.2014.0575

中图分类号：

学科分类号：

摘要：

Based on rotation-invariant star-pair angular distances, a calibration algorithm was proposed to calibrate structural parameters of multiple field of view (FOV) star tracker. With the rotation relationships of each subfield of view were described by three Euler angels, the calibration scheme and objective function were generated by some starlight vectors of star pairs, which were obtained from the image coordinates and the corresponding celestial coordinates of observed star points. Levenberg-Marquardt (L-M) algorithm optimized the objective function and provided the relative Euler angles of each sub FOV. External attitude-measurement devices are not necessary, and the method can be used for on-obit and ground calibrations. Several attitudes were randomly selected to create star images used for calibration in the celestial sphere, then the inter star-angle statistical residual was chosen as an evaluation standard for accuracy calibration. The results show that this method is effective to calculate the accurate structural parameters. Under the positional noise level of 0.1 pixel, the inter star-angle statistical residual can reach 1.3 arc sec on average, and it can reach 6.4 arc sec on average when the method is used in outdoor experiments. ï¿½, YYYY, Beijing University of Aeronautics and Astronautics (BUAA). All right reserved.

引用

页码：1532 / 1538

页数：6

共 24 条

[1]

J∅rgensen J.L., Liebe C.C., The advanced stellar compass development and operations, Acta Astronautica, 39, 9-12, pp. 775-783, (1996)

[2]

Liebe C.C., Accuracy performance of star trackers-a tutorial, IEEE Transactions on Aerospace and Electronic Systems, 38, 2, pp. 587-599, (2002)

[3]

Wang X.D., Study on wild-fleld-of-view and high-accuracy star sensor technologies, (2003)

[4]

Mortari D., Romoli A., StarNav III: A three fields of view star tracker, IEEE Aerospace Conference Proceedings, 1, pp. 47-57, (2002)

[5]

Mortari D., Pollock T.C., Junkins J.L., Toward the most accurate attitude determination system using star trackers, Advances in the Astronautical Sciences, 99, 2, pp. 839-850, (1998)

[6]

Mortari D., Angelucci M., Star pattern recognition and mirror assembly misalignment for digistar II and III multiple FOVs star sensors, Advances in the Astronautical Sciences, 102, pp. 175-1184, (1999)

[7]

Ju G., Pollock T., Junkins J.L., Digistar II micro-star tracker-autonomous on-orbit calibration and attitude estimation, Advances in the Astronautical Sciences, 103, pp. 2025-2035, (2000)

[8]

Mortari D., Junkins J.L., SP-search star pattern recognition for multiple fields of view star trackers, Advances in the Astronautical Sciences, 103, pp. 2127-2143, (2000)

[9]

Ludovic B., Nicolas P., Stephen A., New multiple head star sensor (HYDRA) description and status, AIAA-2005-5932, (2005)

[10]

Ludovic B., Nicolas P., Laurent M., HYDRA multiple heads star tracker based on active pixel sensor and the gyrometer assistance option, AIAA 57th International Astronautical Congress, IAC 2006, 6, pp. 4187-4195, (2006)

← 1 2 3 →