激光与光电子学进展, 2018, 55 (4): 040401, 网络出版: 2018-09-11
夏克-哈特曼波前探测器的距离-幂指数加权质心探测算法 下载: 971次
Distance-Power Index Weighted Centroid Detection Algorithm for Shack-Hartmann Wavefront Sensors
探测器 信息处理 夏克-哈特曼波前探测器 质心探测算法 detectors information processing Shack-Hartmann wavefront sensor centroid detection algorithm
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。
Abstract
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.
葛睿, 申文, 刘超, 苏宙平, 朱华新, 李大禹, 鲁兴海, 穆全全, 曹召良, 宣丽, 胡立发. 夏克-哈特曼波前探测器的距离-幂指数加权质心探测算法[J]. 激光与光电子学进展, 2018, 55(4): 040401. Rui Ge, Wen Shen, Chao Liu, Zhouping Su, Huaxin Zhu, Dayu Li, Xinghai Lu, Quanquan Mu, Zhaoliang Cao, Li Xuan, Lifa Hu. Distance-Power Index Weighted Centroid Detection Algorithm for Shack-Hartmann Wavefront Sensors[J]. Laser & Optoelectronics Progress, 2018, 55(4): 040401.