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18 November 2014Development of practical thermal infrared hyperspectral imaging system
As an optical remote sensing equipment, the thermal infrared hyperspectral imager operates in the thermal infrared
spectral band and acquires about 180 wavebands in range of 8.0~12.5μm. The field of view of this imager is 13° and the
spatial resolution is better than 1mrad. Its noise equivalent temperature difference (NETD) is less than
0.2K@300K(average). 1 The influence of background radiation of the thermal infrared hyperspectral imager,and a
simulation model of simplified background radiation is builded. 2 The design and implementationof the Cryogenic
Optics. 3 Thermal infrared focal plane array (FPA) and special dewar component for the thermal infrared hyperspectral
imager. 4 Parts of test results of the thermal infrared hyperspectral imager.The hyperspectral imaging system is
China’s first success in developing this type of instrument, whose flight validation experiments have already been
embarked on. The thermal infrared hyperspectral data acquired will play an important role in fields such as geological
exploration and air pollutant identification.