中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 国家天文台
  3. 中国科学院国家天文台
A deconvolution method based on adaptive Landweber iteration to extract LAMOST one-dimensional spectra

文献类型：期刊论文

作者Li, Min1,3; Li, Guangwei1; Lv, Ke3; Duan, Fuqing2; Haerken, Hasitieer1,2; Zhao, Yongheng1
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2019-04-01
卷号484期号:2页码:2403-2410
关键词instrumentation: spectrographs methods: numerical techniques: image processing techniques: spectroscopic
ISSN号0035-8711
DOI10.1093/mnras/stz133
英文摘要In this paper, we present a deconvolution algorithm based on adaptive Landweber iteration (ALI) to extract the one-dimensional ( ID) spectra from Large Sky Area Multi-Object Fiber Spectroscopy Telescope (LAMOST) multi-fibre spectrum images. The algorithm can eliminate serious crosstalk and depress the noise from two-dimensional (2D) images by using adaptively selected regularization parameters. Experiments on simulated images illustrate that 2D residuals reach CCD noise level and that the signal-to-noise (S/N) ratios of the resulting 1D spectra are higher than those from traditional methods. Application on a real LAMOST image shows that the resolutions of 1D spectra extracted from our algorithm are similar to 25 per cent higher than those extracted using the traditional method, and it is obvious that the S/N ratio is also improved.
WOS关键词FIBER ; TELESCOPE
资助项目National Natural Science Foundation of China (NSFC)[U1531242] ; Chinese Academy of Sciences (CAS)[U1531242] ; National Natural Science Foundation of China[11673036] ; National Development and Reform Commission
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000462302600066
出版者OXFORD UNIV PRESS
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Development and Reform Commission ; National Development and Reform Commission
源URL[http://ir.bao.ac.cn/handle/114a11/25678]  
专题中国科学院国家天文台
通讯作者Li, Guangwei; Lv, Ke
作者单位1.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China
2.Beijing Normal Univ, Coll Informat Sci & Technol, Beijing 100875, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Li, Min,Li, Guangwei,Lv, Ke,et al. A deconvolution method based on adaptive Landweber iteration to extract LAMOST one-dimensional spectra[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,484(2):2403-2410.
APA Li, Min,Li, Guangwei,Lv, Ke,Duan, Fuqing,Haerken, Hasitieer,&Zhao, Yongheng.(2019).A deconvolution method based on adaptive Landweber iteration to extract LAMOST one-dimensional spectra.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,484(2),2403-2410.
MLA Li, Min,et al."A deconvolution method based on adaptive Landweber iteration to extract LAMOST one-dimensional spectra".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 484.2(2019):2403-2410.

入库方式： OAI收割

来源：国家天文台

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。