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	Performance of the 37-element solar adaptive optics for the 26 cm solar fine structure telescope at Yunnan Astronomical Observatory
	Rao, CH1,2; Zhu, L1,2; Rao, XJ1,2; Guan, CL1,2; Chen, DH1,2; Chen, SQ1,2; Lin J(林隽)3; Liu ZZ(刘子忠)3; Zhu, L (reprint author), Chinese Acad Sci, Key Lab Adapt Opt, POB 350, Chengdu 610209, Sichuan, Peoples R China.
发表期刊	APPLIED OPTICS
	2010-11
卷号	49期号:31页码:G129-G135
DOI	10.1364/AO.49.00G129
产权排序	第3完成单位
收录类别	SCI ; EI
摘要	A 37-element solar adaptive optics system, which consists of a fine tracking loop with a tip/tilt mirror and a correlation tracker, and a high-order correction loop with a 37-element deformable mirror, a correlating Shack-Hartmann wavefront sensor, and a real-time controller, was built and installed at the 26 cm solar fine structure telescope of the Yunnan Astronomical Observatory in 2009. In this system, the absolute difference algorithm is used. A new architecture with field-programmable gate array (FPGA) and digital signal processor (DSP) for the real-time controller based on systolic array and pipeline was developed. The computational latencies of the fine tracking loop and high-order correction loop are about 35 and 100 mu s, respectively. The tracking residual root-mean-square error is less than 0.1 arcsec, and the wavefront residual root-mean-square error is about 0.05 wavelengths (lambda = 550 nm) after correction. The observational results show that the contrast and resolution of the solar images are improved after the correction by this adaptive optics system. (C) 2010 Optical Society of America
语种	英语
学科领域	Optics
文章类型	Article
ISSN	1559-128X
URL	查看原文
WOS记录号	WOS:000283653000014
WOS研究方向	Optics
WOS类目	Optics
关键词[WOS]	SYSTEM
引用统计	被引频次：30[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/6157
专题	太阳物理研究组
通讯作者	Zhu, L (reprint author), Chinese Acad Sci, Key Lab Adapt Opt, POB 350, Chengdu 610209, Sichuan, Peoples R China.
作者单位	1.The Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, P.O. Box 350, Shuangliu, Chengdu 610209, Sichuan, China 2.The Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Shuangliu, Chengdu 610209, Sichuan, China 3.Yunnan Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Phoenix Hill, Kunming 650011, Yunnan, China
推荐引用方式 GB/T 7714	Rao, CH,Zhu, L,Rao, XJ,et al. Performance of the 37-element solar adaptive optics for the 26 cm solar fine structure telescope at Yunnan Astronomical Observatory[J]. APPLIED OPTICS,2010,49(31):G129-G135.
APA	Rao, CH.,Zhu, L.,Rao, XJ.,Guan, CL.,Chen, DH.,...&Zhu, L .(2010).Performance of the 37-element solar adaptive optics for the 26 cm solar fine structure telescope at Yunnan Astronomical Observatory.APPLIED OPTICS,49(31),G129-G135.
MLA	Rao, CH,et al."Performance of the 37-element solar adaptive optics for the 26 cm solar fine structure telescope at Yunnan Astronomical Observatory".APPLIED OPTICS 49.31(2010):G129-G135.

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