张钧

个人信息

Personal information

副教授     硕士生导师

性别:男

在职信息:在职

所在单位:人工智能与自动化学院

学历:研究生(博士)毕业

学位:工学博士学位

毕业院校:华中科技大学

学科:模式识别与智能系统

Laboratory calibration of star sensor with installation error using a nonlinear distortion model
发布时间:2021-03-07  点击次数:

论文类型:期刊论文
第一作者:李云廷
通讯作者:张钧
合写作者:胡文文,田金文
发表刊物:Applied Physics B: Lasers and Optics
收录刊物:SCI
学科门类:工学
一级学科:信息与通信工程
文献类型:J
卷号:115
期号:4
页面范围:561-570
DOI码:10.1007/s00340-013-5637-5
发表时间:2014-04-07
摘要:The high-precise star sensor calibration method requires high-accurate turntable, collimator, star point plate or other high-precision devices that are very expensive. We present a simple and available method to calibrate the principal point, focal length, radial distortion, tangential distortion and installation error of star sensor in laboratory, and without having high accurate or expensive devices. The calibration model takes the ordinary camera calibration methods and installation error into account. The installation error is modeled by combination of three typical effects: the installation of pan-tilt-zoom (PTZ) initial status, PTZ and charge-coupled device, which result in six parameters. The proposed procedure consists of a closedform solution, followed by a nonlinear refining based on maximum likelihood criterion. Our calibration method is validated through simulation and real data that shows the superiority with respect to the traditional methods and has the same level as the state-of-the-art methods. The accuracy of our calibration method is 0.015 in the root of mean square distances between testing points and projected ones.