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Optical Engineering

Improved robustness of Hartmann wavefront sensor using a principal component analysis algorithm
Author(s): Zuojun Tan
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Paper Abstract

Shack-Hartmann wavefront sensing is the most widely used technique for the measurement of wavefront distortion in adaptive optics (AO). Assembly errors decrease the accuracy of the Shack-Hartmann wavefront sensor and degrade the quality of the AO system. The slant correction method based on principal component analysis (PCA), which has its origin in the digital graphic discipline, is introduced in an AO system. The slant correction method based on PCA and the results of this method for adaptive optics system are investigated experimentally. The experiment results show that the AO system becomes less sensitive to noise, and no high assembly precision is required with the slant correction based on PCA.

Paper Details

Date Published: 1 October 2009
PDF: 4 pages
Opt. Eng. 48(10) 103602 doi: 10.1117/1.3250291
Published in: Optical Engineering Volume 48, Issue 10
Show Author Affiliations
Zuojun Tan, Huazhong Agricultural Univ. (China)

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