中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Curvature wavefront sensing based on a single defocused image and intensity compensation

文献类型:期刊论文

作者ZHIXU WU1,2,3,4; HUA BAI2,3; XIANGQUN CUI2,3
刊名Applied Optics
出版日期2016-03
卷号55期号:10页码:2791-2799
关键词Active or adaptive optics Telescopes Aberrations (global)
英文摘要
Curvature wavefront sensing usually requires the measurement of two defocused images at equal distances before and after the focus. In this paper, a new wavefront recovery algorithm based on only one defocused image is proposed.

This algorithm contains the following four steps: response matrix calculation, establishment of intensity distribution equations, Zernike coefficients solution derived from the least squares method, and defocused image compensation with the solved Zernike coefficients.

The performance of the algorithm in a large obscuration ratio and fast focal ratio optical system on axis and the edge of the field of view (FOV) is examined. Two optical systems of the Hubble telescope and a modified Paul–Baker telescope are employed to test the algorithm.

The simulations show that the proposed algorithm outperforms in structural simplicity, and applications are expected in the wavefront recovery of the extreme environment (i.e., in space and the Antarctic).
学科主题天文技术与方法
语种英语
源URL[http://ir.niaot.ac.cn/handle/114a32/1344]  
专题期刊论文
作者单位1.南昌大学
2.南京天文光学技术研究所
3.中科院天文光学重点实验室
4.中国科学院大学
推荐引用方式
GB/T 7714
ZHIXU WU,HUA BAI,XIANGQUN CUI. Curvature wavefront sensing based on a single defocused image and intensity compensation[J]. Applied Optics,2016,55(10):2791-2799.
APA ZHIXU WU,HUA BAI,&XIANGQUN CUI.(2016).Curvature wavefront sensing based on a single defocused image and intensity compensation.Applied Optics,55(10),2791-2799.
MLA ZHIXU WU,et al."Curvature wavefront sensing based on a single defocused image and intensity compensation".Applied Optics 55.10(2016):2791-2799.

入库方式: OAI收割

来源:南京天文光学技术研究所

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