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Wavelet transform zero-crossing method for auto-extraction of spectral lines
Zhao, RZ; Hu, ZY; Zhao, YH
2005
发表期刊SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号25期号:1页码:153-156
文章类型Article
摘要Wavelet transform method is used in this paper. The authors firstly studied the properties of spectral lines in the wavelet domain. By introducing the items of up-zero-crossings and down-zero-crossings, the authors concluded that absorption lines and emission lines correspond to different kinds of zero-crossings. Therefore the authors presented a new wavelet transform zero-crossing method for the extraction of spectral lines and the normalization of continuum spectra. The useful spectral lines can be obtained together with the continuum spectra. The extraction of spectral lines in this paper is a direct method, which avoids the errors caused during the process of noise reduction. The experiments both on stars, and nearby galaxies show that our method can be used to accurately extract the spectral lines, which is helpful to the computation of characteristic parameters and the automatic classification of spectra based on spectral lines.
关键词Wavelet Transform Astronomical Spectra Spectral Line Extraction Zero-crossings
WOS标题词Science & Technology ; Technology
收录类别SCI
语种英语
WOS研究方向Spectroscopy
WOS类目Spectroscopy
WOS记录号WOS:000226823200039
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9149
专题09年以前成果
作者单位1.Chinese Acad Sci, Inst Automat, Natl Lab Patter Recognit, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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GB/T 7714
Zhao, RZ,Hu, ZY,Zhao, YH. Wavelet transform zero-crossing method for auto-extraction of spectral lines[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2005,25(1):153-156.
APA Zhao, RZ,Hu, ZY,&Zhao, YH.(2005).Wavelet transform zero-crossing method for auto-extraction of spectral lines.SPECTROSCOPY AND SPECTRAL ANALYSIS,25(1),153-156.
MLA Zhao, RZ,et al."Wavelet transform zero-crossing method for auto-extraction of spectral lines".SPECTROSCOPY AND SPECTRAL ANALYSIS 25.1(2005):153-156.
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