Wavefront reconstruction algorithm based on thresholding wavelet transform

被引：0
|
作者：
Han C. [1 ]
Li X. [1 ]
Zhao Q. [1 ]
Huang L. [1 ]
Jiang X. [1 ]
Wen M. [1 ]
机构：
[1] Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
来源：
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2011年 / 23卷 / 05期
关键词：
Adaptive optics; Space optical communication; Threshold algorithm; Wavefront reconstruction; Wavelet transform;
D O I：
10.3788/HPLPB20112305.1197
中图分类号：
学科分类号：
摘要：
A thresholding wavelet multiresolution wavefront reconstruction algorithm is proposed in view of low calculating efficiency and large stable state error of conventional wavefront reconstructors. The wavefront phase distortion is projected to wavelet basis, which makes the pseudo-inverse matrix become sparse matrix and reduces the calculation. Meanwhile, threshold is chosen to remove the high resolution wavelet-based coefficients which have little effect on calculation precision, improving operation efficiency. The algorithm is compared with least square, Zernike modal and iterative methods, and the simulation results show that this algorithm is superior in computing speed and convergence precision.
引用
收藏
页码：1197 / 1200
页数：3
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