Fast Fourier and wavelet transforms for wavefront reconstruction in adaptive optics

被引：4

作者：

Dowla, FU ^{[1
]}

Brase, JM ^{[1
]}

Olivier, SS ^{[1
]}

Thompson, CA ^{[1
]}

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

来源：

HIGH-RESOLUTION WAVEFRONT CONTROL: METHODS, DEVICES, AND APPLICATIONS II | 2000年 / 4124卷

关键词：

novel algorithms and architectures; adaptive optics; wavefront reconstruction; fast algorithms; real-time imaging; wavefront control; phase reconstruction; FFT methods; wavelets; MEMS;

D O I：

10.1117/12.407495

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Wavefront reconstruction techniques using the least-squares estimators are computationally quite expensive. We compare wavelet and Fourier transforms techniques in addressing the computation issues of wavefront reconstruction in adaptive optics. It is shown that because the Fourier approach is not simply a numerical approximation technique unlike the wavelet method, the Fourier approach might have advantages in terms of numerical accuracy. To optimize the wavelet method, a statistical study might be necessary to use the best basis functions or "approximation tree."

引用

页码：118 / 127

页数：10