Wavelet transform zero-crossing method for auto-extraction of spectral lines
文献类型：期刊论文
| 作者 | Zhao, RZ; Hu, ZY; Zhao, YH
|
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2005 |
| 卷号 | 25期号:1页码:153-156 |
| 关键词 | wavelet transform astronomical spectra spectral line extraction zero-crossings |
| 英文摘要 | 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000226823200039 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7022]  |
| 专题 | 国家天文台_光学天文研究部 |
| 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. |
入库方式： OAI收割
来源：国家天文台
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