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题名:
a Real-time measurement of atmospheric parameters for the 127-element adaptive optics system of 1.8-m telescope
作者: Mu, Jie; Zheng, Wenjia; Li, Mei; Rao, Changhui
刊名: Chinese Optics Letters
出版日期: 2012
卷号: 10, 期号:12
DOI: 10.3788/COL201210.120101
通讯作者: Mu, J (reprint author), Chinese Acad Sci, Lab Adapt Opt, Inst Opt & Elect, Chengdu 610209, Peoples R China.
文章类型: 期刊论文
中文摘要: A real-time method for measuring atmospheric parameters based on co-processor field-programmable gate array (FPGA) and main processor digital signal processing (DSP) is proposed for ground-based telescopes with adaptive optics (AO) systems. Coherence length, outer scale, average wind speed, and coherence time are estimated according to closed-loop data on the residual slopes and the corrected voltages of AO systems. This letter introduces the principle and architecture design of the proposed method, which is successfully applied in the 127-element AO system of the 1.8-m telescope of Yunnan Astronomical Observatory. The method enables real-time atmospheric observations with the same object and path of the AO system. This method is also applicable to extended objects.
英文摘要: A real-time method for measuring atmospheric parameters based on co-processor field-programmable gate array (FPGA) and main processor digital signal processing (DSP) is proposed for ground-based telescopes with adaptive optics (AO) systems. Coherence length, outer scale, average wind speed, and coherence time are estimated according to closed-loop data on the residual slopes and the corrected voltages of AO systems. This letter introduces the principle and architecture design of the proposed method, which is successfully applied in the 127-element AO system of the 1.8-m telescope of Yunnan Astronomical Observatory. The method enables real-time atmospheric observations with the same object and path of the AO system. This method is also applicable to extended objects.
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11178004]
语种: 英语
WOS记录号: WOS:000313022000001
ISSN号: 1671-7694
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6303
Appears in Collections:自适应光学技术研究室(八室)_期刊论文

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作者单位: 1.[Mu, Jie
2.Zheng, Wenjia
3.Li, Mei
4.Rao, Changhui] Chinese Acad Sci, Lab Adapt Opt, Inst Opt & Elect, Chengdu 610209, Peoples R China
5.[Mu, Jie
6.Zheng, Wenjia
7.Li, Mei
8.Rao, Changhui] Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
9.[Mu, Jie] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Mu, Jie,Zheng, Wenjia,Li, Mei,et al. a Real-time measurement of atmospheric parameters for the 127-element adaptive optics system of 1.8-m telescope[J]. Chinese Optics Letters,2012,10(12).
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