title: Study on the Non-Uniformity Calibration of Space-Born Differential Optical Absorption Spectrometer.
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.
authors.forename: Min-jie
authors.initials: MJ
authors.lastname: Zhao
authors.forename: Ying
authors.initials: Y
authors.lastname: Zou
authors.forename: Fu-qi
authors.initials: FQ
authors.lastname: Si
authors.forename: Yi-huai
authors.initials: YH
authors.lastname: Lu
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.forename: Shi-mei
authors.initials: SM
authors.lastname: Wang
authors.forename: Hai-jin
authors.initials: HJ
authors.lastname: Zhou
authors.forename: Yi
authors.initials: Y
authors.lastname: Zeng
authors.forename: Wen-qing
authors.initials: WQ
authors.lastname: Liu