光学学报, 2003, 23 (2): 240, 网络出版: 2006-06-27
快速傅里叶算法在哈特曼夏克传感器
Wave-Front Reconstruction Algorithm of Shack-Hartmann Sensor Based on FFT Algorithm
自适应光学 波前重构 哈特曼夏克传感器传感器 快速傅里叶变换算法 adaptive optics Shack-Hartmann wave-front sensor wave-front reconstruction FFT algorithm
摘要
提出了一种应用快速傅里叶变换算法提高哈特曼夏克波前传感器波前重构实时性的快速算法。在根据波前斜率值应用最小二乘法估计波前相位的过程中,应用快速傅里叶变换算法进行方程的对角化和相位值的解耦,算法精度高、稳定。空间分辨率越高,算法实时性的优越性就越显著。
Abstract
Based on the fast Fourier transform (FFT) algorithm, the wave-front reconstruction algorithm of Shack-Hartmann sensor is described. The fast Fourier transform is used to diagonalize and decouple the wave-front reconstruction equations which is deduced from the least-squares criterion. The algorithm is accurate and stable. And the superiority of real-time be comes notable when the Shack|Hartmann sensor′s spatial resolution is getting higher.
段海峰, 杨泽平, 张雨东. 快速傅里叶算法在哈特曼夏克传感器[J]. 光学学报, 2003, 23(2): 240. 段海峰, 杨泽平, 张雨东. Wave-Front Reconstruction Algorithm of Shack-Hartmann Sensor Based on FFT Algorithm[J]. Acta Optica Sinica, 2003, 23(2): 240.
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