Acta Photonica Sinica, Volume. 43, Issue 10, 1028001(2014)
In-flight Spectral Calibration of Oxygen Absorption Channels of Hyperspectral Sensor
The Oxygen absorption characteristic was analyzed and four hyperspectral sensor models were built with full width at half maximum of 15, 10, 5 and 2.5 nm. Four spectral matching styles and six spectral matching algorithms were proposed. The measured spectrum and referenced spectrum with spectral offset were simulated based on MODTRAN radiative transfer model. The spectral calibrations of hyperspectral sensor with different FWHMs were processed using four spectral matching styles and six spectral matching algorithms. Then the in-flight spectral calibration accuracy was analyzed quantitatively. The results show that the spectral calibration based on correlative coefficient of measured apparent radiance and referenced apparent radiance has the highest accuracy.
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GAO Hai-liang, GU Xing-fa, YU Tao, XIE Yong, SUN Yuan, ZHENG Feng-jie. In-flight Spectral Calibration of Oxygen Absorption Channels of Hyperspectral Sensor[J]. Acta Photonica Sinica, 2014, 43(10): 1028001
Received: Jan. 3, 2014
Accepted: --
Published Online: Nov. 6, 2014
The Author Email: Hai-liang GAO (gaohl@radi.ac.cn)