Chinese Journal of Lasers, Volume. 42, Issue 3, 314001(2015)
Compensation for Star Centroid Systematic Error of Star Trackers
The frequency of star centroid systematic error is analized, the common quality of star centroid systematic error distributions with different point spread functions is found. A simulation using Monte Carlo method is done according to the point spread function data of different field of views (FOV) from optical system. The result of simulation is in accordance with frequency analysis. The star centroid systematic error of the star object whose dispersion spot dimensions are 5 pixel × 5pixel is experimentally measured. The star centroid systematic error is compensated with error compensation equations, after compensation the accuracy of central FOV is increased by 66.56% , and the accuracy of fringe FOV is increased by 57.21% . So the effect of the compensation using the proposed method is better than the traditional compensation method using sine curve fitting with the accuracy only increased by 35.7%.
Get Citation
Copy Citation Text
Jiang Liang, Zhang Liguo, Zhang Xingxiang, Ren Jianyue. Compensation for Star Centroid Systematic Error of Star Trackers[J]. Chinese Journal of Lasers, 2015, 42(3): 314001
Category: Remote Sensing and Sensors
Received: Aug. 5, 2014
Accepted: --
Published Online: Feb. 13, 2015
The Author Email: Liang Jiang (jkl85527@mail.ustc.edu.cn)