Wavelet transform zero-crossing method for auto-extraction of spectral lines

CASIA OpenIR > 09年以前成果

	Wavelet transform zero-crossing method for auto-extraction of spectral lines
	Zhao, RZ ; Hu, ZY; Zhao, YH
发表期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
	2005
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
推荐引用方式 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.