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新真空太阳望远镜多波段高分辨率成像系统的视场定标
Alternative TitleField Calibration of Multiband High Resolution Imaging System with New Vacuum Solar Telescope
王瑞1,2; 徐稚1; 陈宇超1,2; 金振宇1; 向永源1; 付玉1; 季凯帆1
Source Publication光学学报 (Acta Optica Sinica)
2018-01
Volume38Issue:01Pages:116-123
DOI10.3788/AOS201838.0111002
ClassificationTp391.41
Contribution Rank第1完成单位
Indexed ByEI ; CSCD ; 核心
Keyword成像系统 地基太阳望远镜 图像匹配 针孔光阑 太阳观测
Abstract

为了实现新真空太阳望远镜(NVST)多波段图像0.1″精度的视场匹配,提出了针孔光阑视场定标的方法,并在NVST光球[TiO(705.8nm)]通道和色球[Hα(656.28nm)]通道上进行了实验分析。采用11×11点阵的针孔阵列光阑,对两通道视场之间的旋转、放缩和平移关系进行了定标。通过仿射变换实现两通道太阳图像的高精度视场匹配,精度可达0.031″。虽然匹配残差在整个视场内(约为2′)存在不均匀性,视场边缘最大残差为0.076″。定标参数的数值会随着光学平台位置的变化而改变,造成了0.05″的视场匹配差异,但这些匹配差异都在分辨率要求的精度之内。对TiO通道和Hα通道实测数据的分析也证明了上述方法的精度估计。

Other Abstract

a high accuracy of 0.1",a method called pinhole aperture filed calibration is proposed and applied to the experimental analysis about the photosphere[ TiO (750.8nm)] channel and chromosphere [ Hα(656.28nm)] channel of NVST. A pinhole-array aperture (11×11 pinholes) is used to calibration of the rotation, scaling and translation relationships between the fields of the two channels, As a result, he high accuracy field matching of two-field solar images with the accuracy reaching up to 0.031" is accomplished by affine transformation. It is also found that the Matching residual is not uniform in the entire field (about 2´) and the maximum residual is about 0.076" at the edge of the filed. The values of the calibration parameters are changing with the variation of optical platform position, and the matching difference of filed is 0.05",which is within the precision of the resolution requirement. The estimated accuracy is also supported by the analysis of measured data from TiO channel and  Hα channel

Funding Project国家自然科学基金[11573012] ; 国家自然科学基金[11473064] ; 国家自然科学基金[11203075]
Funding Organization国家自然科学基金[11573012, 11473064, 11203075]
Language中文
Subject Area天文学 ; 太阳与太阳系 ; 太阳与太阳系其他学科
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeJournal article (JA)
PublisherChinese Optical Society
ISSN0253-2239
CSCD IDCSCD:6175631
EI Accession Number20181705054800
EI KeywordsTelescopes
EI Classification Number746imaging Techniques
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12106
Collection抚仙湖太阳观测站
Corresponding Author季凯帆
Affiliation1.中国科学院云南天文台,云南,昆明,650216
2.中国科学院大学,北京,100049
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
王瑞,徐稚,陈宇超,等. 新真空太阳望远镜多波段高分辨率成像系统的视场定标[J]. 光学学报 (Acta Optica Sinica),2018,38(01):116-123.
APA 王瑞.,徐稚.,陈宇超.,金振宇.,向永源.,...&季凯帆.(2018).新真空太阳望远镜多波段高分辨率成像系统的视场定标.光学学报 (Acta Optica Sinica),38(01),116-123.
MLA 王瑞,et al."新真空太阳望远镜多波段高分辨率成像系统的视场定标".光学学报 (Acta Optica Sinica) 38.01(2018):116-123.
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