Study on the Non-Uniformity Calibration of Space-Born Differential Optical Absorption Spectrometer
ZHAO Min-jie1, ZOU Ying2, SI Fu-qi1*, LU Yi-huai1, WANG Yu1, WANG Shi-mei1, ZHOU Hai-jin1, ZENG Yi1, LIU Wen-qing1
1. Key Laboratory of Environmental Optics and Technology，Anhui Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Hefei 230031，China 2. Shanghai Academy of Spaceflight Technology, Shanghai 201109, China
Abstract：Space-borne differential optical absorption spectrometer is a nadir viewing wide field imaging spectrometer, which adopts two-dimensional CCD detector arrays. The pixel response non-uniformity exists in each column of spatial dimension, which will introduce high-frequency instrument-related spectral structures in the measurement data. However, the non-uniformity calibration of space-born imaging spectrometer is difficulty due to two factors: the spectral smile effect and the large field of view. For this reason, a method of non-uniformity calibration is discussed in detail. The result shows that the spectral smile effect and non-uniformity of full FOV image are corrected effectively, and high-frequency instrument-related structures in the measurement data are removed.
赵敏杰1，邹 莹2，司福祺1*，陆亦怀1，王 煜1，汪世美1，周海金1，曾 议1，刘文清1 . 星载痕量气体差分吸收光谱仪非均匀性校正研究 [J]. 光谱学与光谱分析, 2015, 35(09): 2578-2582.
ZHAO Min-jie1, ZOU Ying2, SI Fu-qi1*, LU Yi-huai1, WANG Yu1, WANG Shi-mei1, ZHOU Hai-jin1, ZENG Yi1, LIU Wen-qing1. Study on the Non-Uniformity Calibration of Space-Born Differential Optical Absorption Spectrometer. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(09): 2578-2582.
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