Research on an Equal Wavelength Spectrum Reconstruction Method of Interference Imaging Spectrometer
文献类型：期刊论文
| 作者 | Xie Pei-yue1,2; Yang Jian-feng1 ; Xue Bin1; Lu Juan1; He Ying-hong1; Li Ting1; Ma Xiao-long1
|
| 刊名 | spectroscopy and spectral analysis
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 36期号:3页码:848-852 |
| ISSN号 | 1000-0593 |
| 关键词 | Chang' E-1 Interference imaging spectrometer Equal wavelength spectrum resolution Spectral reconstruction Fourier transform |
| 其他题名 | 干涉成像光谱仪等波长光谱重建方法研究 |
| 产权排序 | 1 |
| 英文摘要 | interference imaging spectrometer is one of the most important equipments of chang'e 1 satellite, which is applied to analysis the material composition and its distribution of the surface on the moon. at present, the spectral resolution of level 2b scientific data obtained by existing methods is 325 cm(-1). if we use the description way of wavelength resolution, various spectrum is different; the first band is 7.6 nm, the last band is 29 nm, which introduces two questions: (1) the spectral resolution description way mismatch with the way of ground spectral library used for calibration and comparison; (2) the signal-to-noise ratio of the spectra in the shortwave band is low due to the signal entering narrow band is little. this paper discussed the relationship between wavelength resolution and cut-off function based on the reconstruction model of ce-1 interference imaging spectrometer. it proposed an adjustable cut-off function changing with wavelength or wavelength resolution, while selected the appropriate sinc function as apodization to realize the reconstruction of arbitrary specified wavelength resolution in the band coverage. then we used this method to ce-1 on orbit ob data to get a spectral image of 29 nm wavelength resolution. finally, by using the signal-to-noise ratio, principal component analysis and unsupervised classification method on the reconstruction results with 2 grade science data from ground application system for comparison, the results showed that: signal-to-noise ratio of the shortwave band increased about 4 times, and the average increased about 2.4 times, the classification based on the spectrum was consistent, and the quality of the data was greatly improved. so, ewsr method has the advantages that: (1) in the case of keeping spectral information steadiness, it can improve the signal-to-noise ratio of shortwave band spectrum though sacrificed part of spectral resolution; (2) it can achieve the spectral data reconstruction which can set arbitrary band position or specify any wavelength resolution within the band range. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | spectroscopy |
| 研究领域[WOS] | spectroscopy |
| 关键词[WOS] | change-1 |
| 收录类别 | SCI ; EI |
| 语种 | 中文 |
| WOS记录号 | WOS:000372478000045 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/28082]  |
| 专题 | 西安光学精密机械研究所_月球与深空探测技术研究室 |
| 作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie Pei-yue,Yang Jian-feng,Xue Bin,et al. Research on an Equal Wavelength Spectrum Reconstruction Method of Interference Imaging Spectrometer[J]. spectroscopy and spectral analysis,2016,36(3):848-852. |
| APA | Xie Pei-yue.,Yang Jian-feng.,Xue Bin.,Lu Juan.,He Ying-hong.,...&Ma Xiao-long.(2016).Research on an Equal Wavelength Spectrum Reconstruction Method of Interference Imaging Spectrometer.spectroscopy and spectral analysis,36(3),848-852. |
| MLA | Xie Pei-yue,et al."Research on an Equal Wavelength Spectrum Reconstruction Method of Interference Imaging Spectrometer".spectroscopy and spectral analysis 36.3(2016):848-852. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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