TY - GEN
T1 - Improving star centroiding accuracy in stray light base on background estimation
AU - Cao, Zheng
AU - Wang, Gangyi
AU - Wei, Xinguo
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - Star sensor, an important component of the spacecraft attitude control system, has the highest attitude measurement accuracy. But the star sensor is often interfered by stray light in space, which affects the star extraction process, resulting in accuracy degradation of the star sensor. To solve this problem, a star extraction algorithm base on background estimation is proposed. By estimating removing the background of the star image, the algorithm simultaneously achieves high star extraction rate and high extraction accuracy. Experiments on both simulated star images and real night-sky images show that the proposed algorithm outperforms state of the art algorithm in both extraction rate and accuracy, especially for the images of very complex background. In addition, computational complexity and fast implementation of the algorithm is also discussed.
AB - Star sensor, an important component of the spacecraft attitude control system, has the highest attitude measurement accuracy. But the star sensor is often interfered by stray light in space, which affects the star extraction process, resulting in accuracy degradation of the star sensor. To solve this problem, a star extraction algorithm base on background estimation is proposed. By estimating removing the background of the star image, the algorithm simultaneously achieves high star extraction rate and high extraction accuracy. Experiments on both simulated star images and real night-sky images show that the proposed algorithm outperforms state of the art algorithm in both extraction rate and accuracy, especially for the images of very complex background. In addition, computational complexity and fast implementation of the algorithm is also discussed.
KW - background estimation
KW - star extraction
KW - star sensor
UR - https://www.scopus.com/pages/publications/85062075782
U2 - 10.1109/IEMCON.2018.8614974
DO - 10.1109/IEMCON.2018.8614974
M3 - 会议稿件
AN - SCOPUS:85062075782
T3 - 2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference, IEMCON 2018
SP - 513
EP - 518
BT - 2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference, IEMCON 2018
A2 - Chakrabarti, Satyajit
A2 - Saha, Himadri Nath
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE Annual Information Technology, Electronics and Mobile Communication Conference, IEMCON 2018
Y2 - 1 November 2018 through 3 November 2018
ER -