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题名:
Speckle transfer function for partial correction adaptive optics image reconstruction
作者: Zhong, Libo1,2,3; Tian, Yu1,2; Rao, Changhui1,2
刊名: OPTICS LETTERS
出版日期: 2014-08-01
卷号: 39, 期号:15, 页码:4599-4602
文章类型: Article
英文摘要: The residual aberrations of adaptive optics (AO) images can be removed by the speckle reconstruction method. To achieve accurate photometry, the knowledge of the speckle transfer function (STF) is necessary. In this Letter, a new method is proposed to evaluate the STF for speckle image reconstruction based on the partial correction AO. The STF is divided into two sections: the low-frequency section and the high-frequency section, and two different generalized Fried parameters for the partial wavefront compensation are used to calculate the STF values of those two different sections. This method is tested with the different seeing conditions and the various correction modes. The results show that the combined STFs have satisfactory agreement with the simulated AO STFs and give more accurate results than the STFs obtained from the traditional spectral ratio method. Further discussions show that the method is more reliable when the AO is operated in low-order correction mode because the approximation of the STF and the two generalized Fried parameters have better accuracy when the pupil diameter is much larger than those generalized Fried parameters. (C) 2014 Optical Society of America
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: ATMOSPHERIC-TURBULENCE ; ZERNIKE POLYNOMIALS ; FRIED PARAMETER ; COMPENSATION ; STATISTICS ; RESOLUTION
收录类别: SCI
语种: 英语
WOS记录号: WOS:000339878900081
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2485
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Lab Adapt Opt, Chengdu 610209, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Zhong, Libo,Tian, Yu,Rao, Changhui. Speckle transfer function for partial correction adaptive optics image reconstruction[J]. OPTICS LETTERS,2014,39(15):4599-4602.
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