A wavelet-transform-based method for the automatic detection of late-type stars
文献类型：期刊论文
| 作者 | Liu, ZT; Zhao, RZ; Zhao, YH; Wu, FC
|
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2005-07-01 |
| 卷号 | 25期号:7页码:1158-1161 |
| 关键词 | wavelet transform late-type stars astronomical spectra molecule absorption bands |
| 英文摘要 | The LAMOST project, the world largest sky survey project, urgently needs an automatic late-type stars detection system. However, to our knowledge, no effective methods for automatic late-type stars detection have been reported in the literature up to now. The present study work is intended to explore possible ways to deal with this issue. Here, by "late-type stars" we mean those stars with strong molecule absorption bands, including oxygen-rich M, L and T type stars and carbon-rich C stars. Based on experimental results, the authors find that after a wavelet transform with 5 scales on the late-type stars spectra, their frequency spectrum of the transformed coefficient on the 5(th) scale consistently manifests a unimodal distribution, and the energy of frequency spectrum is largely concentrated on a small neighborhood centered around the unique peak. However, for the spectra of other celestial bodies, the corresponding frequency spectrum is of multimodal and the energy of frequency spectrum is dispersible. Based on such a finding, the authors presented a wavelet-transform-based automatic late-type stars detection method. The proposed method is shown by extensive experiments to be practical and of good robustness. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Spectroscopy |
| 研究领域[WOS] | Spectroscopy |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000231098900040 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/9187]  |
| 专题 | 自动化研究所_09年以前成果 |
| 作者单位 | 1.Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing 100080, Peoples R China 2.Beijing Jiaotong Univ, Sch Comp & Informat Technol, Beijing 100044, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, ZT,Zhao, RZ,Zhao, YH,et al. A wavelet-transform-based method for the automatic detection of late-type stars[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2005,25(7):1158-1161. |
| APA | Liu, ZT,Zhao, RZ,Zhao, YH,&Wu, FC.(2005).A wavelet-transform-based method for the automatic detection of late-type stars.SPECTROSCOPY AND SPECTRAL ANALYSIS,25(7),1158-1161. |
| MLA | Liu, ZT,et al."A wavelet-transform-based method for the automatic detection of late-type stars".SPECTROSCOPY AND SPECTRAL ANALYSIS 25.7(2005):1158-1161. |
入库方式： OAI收割
来源：自动化研究所
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