| 空间外差光谱仪干涉图数据处理 |
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| 引用本文： | 叶松,熊伟,乔延利,洪津,方勇华.空间外差光谱仪干涉图数据处理[J].光谱学与光谱分析,2009,29(3). |
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| 作者姓名： | 叶松 熊伟 乔延利 洪津 方勇华 |
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| 作者单位： | 1. 航天信息股份有限公司数字技术研究院,北京,100097;中国科学技术大学,安徽,合肥,230027
2. 中国科学院安徽光学精密机械研究所,安徽,合肥,230031 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 空间外差光谱技术是一种新型的超分辨光谱技术.介绍了空间外差光谱仪的基本原理,并针对其特点提出了干涉图数据处理的方法.首先通过一阶差分对干涉图进行去基线处理,然后使用三角函数作为切趾函数对干涉图进行切趾,并对傅里叶变换光谱进行相位校正,最后采用已知双线光源对空间外差光谱仪原理试验装置进行波长定标.文章以Na双线与Hg谱线进行波长定标,得到了波长定标曲线.通过以上的方法对空间外差光谱仪干涉图数据进行处理,能有效地提高干涉图反演光谱的精度.
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| 关 键 词： | 空间外差光谱仪 干涉图 切趾 相位校正 波长定标觋 |
Data Processing for Interferogram of Spatial Heterodyne Spectrometer |
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| YE Song,XIONG Wei,QIAO Yan-li,HONG Jin,FANG Yong-hua.Data Processing for Interferogram of Spatial Heterodyne Spectrometer[J].Spectroscopy and Spectral Analysis,2009,29(3). |
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| Authors: | YE Song XIONG Wei QIAO Yan-li HONG Jin FANG Yong-hua |
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| Institution: | YE Song1,3,XIONG Wei2,QIAO Yan-li2,HONG Jin2,FANG Yong-hua2 1.Institute of Digital Technology,AISINO Corporation,Beijing 100097,China 2.Anhui Institute of Optics , Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China 3.University of Science , Technology of China,Hefei 230027,China |
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| Abstract: | Spatial heterodyne spectroscopy(SHS) is a new spectroscopic technique which can achieve high spectral resolution.The basic concepts of spatial heterodyne spectrometer was described.A method of data processing for interferogram of spatial heterodyne spectrometer was presented based on its characteristics.First order difference was performed for eliminating the baseline of interferogram.The triangular function was chosen as apodization function.The process of phase correction for Fourier transform spectrum is... |
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| Keywords: | Spatial heterodyne spectrometer Interferogram Apodization Phase correction Wavelength calibration |
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