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The Automatic Recognition and Detection of Sky-Subtraction Residual Componentin the Stellar Spectra
An Ran1; Pan Jing-chang1; Yi Zhen-ping1; Wei Peng2
2017
发表期刊SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号37期号:1页码:273-277
摘要The skylines, superimposing on the target spectrum as a main noise, will reduce the signal-to-noise ratio of the spectrum. If the spectrum still contains a large number of high strength skylight residuals after sky-subtraction processing, it will not be conducive to the follow-up analysis of the target spectrum. At present, the study on the automatic recognition of the abnormal sky-subtraction stellar spectra is limited in number. We can only find the abnormal sky-subtraction spectra by manual inspection, and this will reduce the speed of detection. This paper analyzes the influence factors of sky-subtraction results and finds the characteristics of the abnormal sky-subtraction spectra. A simple and effective method is proposed to automatic recognize the abnormal sky-subtraction stellar spectra which have been processed with the LAMOST Pipeline processing procedure and find the positions of the abnormal skylines. In this method, all the spectra are normalized first; the abnormal skyline is determined by detecting whether there exits any high strength skyline residuals which are similar to the emission line or absorption line. Finally, all the abnormal skyline positions in the spectra are obtained in this method. The experimental results with the LAMOST spectroscopic dataset show that this method can recognize the abnormal sky-subtraction spectra and find the abnormal skyline positions of different residual strength effectively. In addition, the method is simple and has high recognition efficiency, and can be applied to the automatic detection of abnormal sky-subtraction of large number of spectra.
文章类型Article
关键词Sky-substraction Sky-residuals Detection Spectral Normalization Lamost
WOS标题词Science & Technology ; Technology
DOI10.3964/j.issn.1000-0593(2017)01-0273-05
收录类别SCI
语种英语
WOS研究方向Spectroscopy
WOS类目Spectroscopy
WOS记录号WOS:000392359300051
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8285
专题星系宇宙学研究部
作者单位1.Shandong Univ, Sch Mech Elect & Informat Engn, Weihai 264209, Weihai, Peoples R China
2.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
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GB/T 7714
An Ran,Pan Jing-chang,Yi Zhen-ping,et al. The Automatic Recognition and Detection of Sky-Subtraction Residual Componentin the Stellar Spectra[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2017,37(1):273-277.
APA An Ran,Pan Jing-chang,Yi Zhen-ping,&Wei Peng.(2017).The Automatic Recognition and Detection of Sky-Subtraction Residual Componentin the Stellar Spectra.SPECTROSCOPY AND SPECTRAL ANALYSIS,37(1),273-277.
MLA An Ran,et al."The Automatic Recognition and Detection of Sky-Subtraction Residual Componentin the Stellar Spectra".SPECTROSCOPY AND SPECTRAL ANALYSIS 37.1(2017):273-277.
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