夏克-哈特曼波前探测器的距离-幂指数加权质心探测算法  

Distance-Power Index Weighted Centroid Detection Algorithm for Shack-Hartmann Wavefront Sensors

作　　者：葛睿 申文 刘超[2] 苏宙平 朱华新 李大禹[2] 鲁兴海[2] 穆全全[2] 曹召良[2] 宣丽[2] 胡立发 Ge Rui;Shen Wen;Liu Chao;Su Zhouping;Zhu Huaxin;Li Dayu;Lu Xinghai;Mu Quanquan;Cao Zhaoliang;Xuan Li;Hu Lifa(Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, School of Science, Jiangnan University, Wuxi, Jiangsu 214122, China;State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mec, hanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China)

机构地区：[1]江南大学理学院江苏省轻工光电工程技术研究中心,江苏无锡214122 [2]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春130033

出　　处：《激光与光电子学进展》2018年第4期43-48,共6页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61475152;61405194;61378075)

摘　　要：对于暗弱目标探测,现有的方法仍然存在探测误差较大的问题,为了提高夏克-哈特曼波前探测器的质心探测精度,提出了一种改进的距离-幂指数质心探测算法。在不同情况下将所提算法与现有的几种质心算法进行对比,仿真结果表明,在不同信噪比、不同光斑直径、子区域不同像素等因素影响下,所提算法的质心探测误差低于其他算法的误差,且更为稳定。For the weak target detection, the existing methods still have the problem of large detection error. In order to improve the accuracy of the centroid detection of the Shack-Hartmann wavefront sensor, an improved distance-power index centroid detection algorithm is proposed. The proposed algorithm is compared with several existing centroid algorithms under different conditions, the simulation results show that the centroid detection error of proposed algorithm is lower and more stable than that of other algorithms under the factors of different signal-to- noise ratios, different spot diameters and different pixels in sub-area.

关 键 词：探测器 信息处理 夏克-哈特曼波前探测器 质心探测算法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TP212.1[自动化与计算机技术—计算机科学与技术]