Application of the Gaussian modeling algorithm to a Shack-Hartmann wavefront sensor for daylight adaptive optics

doi:10.1364/OL.434941

CIOMP OpenIR

	Application of the Gaussian modeling algorithm to a Shack-Hartmann wavefront sensor for daylight adaptive optics
	L. Xu; J. Wang; K. Yao and L. Yang
	2021
发表期刊	Optics Letters
ISSN	1469592
卷号	46 期号:17 页码:4196-4199
摘要	Daytime use of Shack-Hartmann wavefront sensor (SHWS)-based adaptive optics (AO) at a telescope is hindered by the fluctuating bright sky background. Therefore, we propose a Gaussian modeling centroid extraction algorithm that performs real-time daylight AO closed-loop corrections. The algorithm is executed in the process of modeling and updating each pixel of the consecutive SHWS images. The simulation results show that our method can provide a lower centroid estimation error (CEE) for bright sky background conditions. We also performed a field experiment on a 2 m ground-based telescope and achieved a daylight AO correction of 2.1 times diffraction limit for a star with a visual magnitude of 4.7 (HIP113116) when the elevation angle of the sun was 7.7. This represents the first publicly reported daylight natural guide star AO correction result on a 2 m class telescope. 2021 Optical Society of America.
DOI	10.1364/OL.434941
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收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65060
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	L. Xu,J. Wang,K. Yao and L. Yang. Application of the Gaussian modeling algorithm to a Shack-Hartmann wavefront sensor for daylight adaptive optics[J]. Optics Letters,2021,46(17):4196-4199.
APA	L. Xu,J. Wang,&K. Yao and L. Yang.(2021).Application of the Gaussian modeling algorithm to a Shack-Hartmann wavefront sensor for daylight adaptive optics.Optics Letters,46(17),4196-4199.
MLA	L. Xu,et al."Application of the Gaussian modeling algorithm to a Shack-Hartmann wavefront sensor for daylight adaptive optics".Optics Letters 46.17(2021):4196-4199.

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