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Proceedings Paper

High spectral resolution airborne short wave infrared hyperspectral imager
Author(s): Liqing Wei; Liyin Yuan; Yueming Wang; Xiaoqiong Zhuang
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Paper Abstract

Short Wave InfraRed(SWIR) spectral imager is good at detecting difference between materials and penetrating fog and mist. High spectral resolution SWIR hyperspectral imager plays a key role in developing earth observing technology. Hyperspectral data cube can help band selections that is very important for multispectral imager design. Up to now, the spectral resolution of many SWIR hyperspectral imagers is about 10nm. A high sensitivity airborne SWIR hyperspectral imager with narrower spectral band will be presented. The system consists of TMA telescope, slit, spectrometer with planar blazed grating and high sensitivity MCT FPA. The spectral sampling interval is about 3nm. The IFOV is 0.5mrad. To eliminate the influence of the thermal background, a cold shield is designed in the dewar. The pixel number of spatial dimension is 640. Performance measurement in laboratory and image analysis for flight test will also be presented.

Paper Details

Date Published: 20 May 2016
PDF: 7 pages
Proc. SPIE 9819, Infrared Technology and Applications XLII, 98190L (20 May 2016); doi: 10.1117/12.2223652
Show Author Affiliations
Liqing Wei, Shanghai Institute of Technical Physics (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Liyin Yuan, Shanghai Institute of Technical Physics (China)
Yueming Wang, Shanghai Institute of Technical Physics (China)
Xiaoqiong Zhuang, Shanghai Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 9819:
Infrared Technology and Applications XLII
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton, Editor(s)

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