| 临边成像光谱仪光谱辐亮度响应度定标研究 |
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| 引用本文： | 薛庆生. 临边成像光谱仪光谱辐亮度响应度定标研究[J]. 上海电力学院学报, 2010, 0(3) |
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| 作者姓名： | 薛庆生 |
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| 作者单位： | 中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室;中国科学院研究生院; |
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| 基金项目： | 国家“863”计划资助项目(2009AA12Z151) |
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| 摘 要： | 基于积分球原理,提出了一种利用积分球进行光谱辐亮度响应度定标的新方法,消除了利用积分球定标的传统方法中由于漫反射板的双向反射率分布函数(BRDF)的测量不确定度大对定标精度的影响,极大地提高了定标精度。利用该方法标定了在研的空间遥感临边成像光谱仪原型样机的光谱辐亮度响应度,分析了定标不确定度,定标合成不确定度为2.6%。将该方法的定标结果与采用标准灯联合漫反射板的定标结果进行了分析比对,结果表明,二者在3%以内相符。引起两种定标结果偏差的主要原因是漫反射板BRDF测量的不确定度。
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| 关 键 词： | 辐射定标 临边成像光谱仪 积分球 漫反射板 |
Spectral radiance responsivities calibration of limb imaging spectrometer |
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| XUE Qing-sheng. Spectral radiance responsivities calibration of limb imaging spectrometer[J]. Journal of Shanghai University of Electric Power, 2010, 0(3) |
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| Authors: | XUE Qing-sheng |
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| Affiliation: | The State Key Laboratory of Applied Optics,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China; Graduate School of Chinese Academy of Sciences,Beijing 100039,China |
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| Abstract: | A new method for calibrating the spectral radiance responsivities based on integrating sphere principle is proposed.The effect of the uncertainties in measurements of bidirectional reflectance distribution function(BRDF) of the diffuser is eliminated and the calibration precision is evidently improved.Using this new method,the spectral radiance responsivities of the space-borne remote sensing limb imaging spectrometer is calibrated.The uncertainties of the calibration is analyzed,and the combined uncertaint... |
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| Keywords: | radiometric calibration limb imaging spectrometer integrating sphere diffuser |
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