The calibration of an infrared hyperspectral imager and its flight test validation in laboratory
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Shanghai Institute of Technical Physics,Shanghai Institute of technical physics of the chinese academy of sciences,Shanghai Institute of technical physics of the chinese academy of sciences,Shanghai Institute of technical physics of the chinese academy of sciences,Shanghai Institute of technical physics of the chinese academy of sciences,Shanghai Institute of technical physics of the chinese academy of sciences,Shanghai Institute of technical physics of the chinese academy of sciences,Shanghai Institute of technical physics of the chinese academy of sciences

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    Abstract:

    Infrared spectrum is very useful in the field of hyperspectral remote sensing. Because of the weak energy of infrared spectrum, the difficulty of the development of infrared focal plane, and the strong background, the development of the Infrared Hyperspectral Imaging System is very difficult. So far, the field is still in the laboratory research stage. This paper presents an airborne infrared hyperspectral imager. It can acquires 180 wavebands in the range of 8.0~12.5 μm.The spectral resolution of this imager is better than 44 nm and the absolute spectral calibration accuracy is better than 1 nm. The field of view of this imager is about 14° and the spatial resolution is better than 1mrad. Its noise equivalent temperature difference (NETD) is less than 0.2 K@300 K. The imager was carried out in Zhoushan, Zhejiang, China in June 2015. Analysis shows that the infrared hyperspectral image data can plays an important role in the field of surface emissivity inversion and geological mineral recognition.

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WANG Jian-Yu, LI Chun-Lai, LV Gang, YUAN Li-Yin, WANG Yue-Ming, JIN Jian, CHEN Xiao-Wen, XIE Feng. The calibration of an infrared hyperspectral imager and its flight test validation in laboratory[J]. Journal of Infrared and Millimeter Waves,2017,36(1):69~75

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History
  • Received:April 19,2016
  • Revised:June 01,2016
  • Adopted:June 02,2016
  • Online: March 28,2017
  • Published: