Spectral measurement of minerals and gases based on airborne thermal-infrared hyperspectral imaging system
Received:May 06, 2020  Revised:November 23, 2020  download
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Author NameAffiliationE-mail
LI Chun-Lai Key Laboratory of Space Active Optoelectronic Technology Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China
Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China 
lichunlai@mail.sitp.ac.cn 
LIU Chen-Yu Key Laboratory of Space Active Optoelectronic Technology Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China  
JIN Jian Key Laboratory of Space Active Optoelectronic Technology Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China  
XU Rui Key Laboratory of Space Active Optoelectronic Technology Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China  
XIE Jia-Nan Key Laboratory of Space Active Optoelectronic Technology Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China  
LV Gang Key Laboratory of Space Active Optoelectronic Technology Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China  
YUAN Li-Yin Key Laboratory of Space Active Optoelectronic Technology Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China  
LIU Xiao Wuhan Center of China Geological Survey Central South China Innovation Center for Geosciences Wuhan 430205China  
XU Hong-Gen Wuhan Center of China Geological Survey Central South China Innovation Center for Geosciences Wuhan 430205China honggen_xu@163.com 
WANG Jian-Yu Key Laboratory of Space Active Optoelectronic Technology Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China
Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China 
jywang@mail.sitp.ac.cn 
Abstract:In this paper, we introduced the unique advantages of the thermal infrared hyperspectral imaging in many applications, and then discuss the design to optimize sensitivity of the airborne thermal-infrared hyperspectral imaging system (ATHIS). Additionally, we establish emission spectrum of laboratory minerals and build the radiation model to measure the absorption spectrum of gas, with which the procession of separation of spectrum and temperature is analyzed. Finally, ATHIS is used to carry out laboratory measurements of mineral emission spectrum and gas infrared absorption spectrum. The results show that the data method we proposed for ATHIS can accurately invert mineral emissivity spectrum and gas absorption spectrum. In the future, ATHIS will be used to carry out multi-platform remote sensing application experiments, which will lay the foundation for future development of space-borne thermal infrared hyperspectral camera and data processing methods.
keywords:thermal infrared hyperspectral imaging  absolute temperature  detection sensitivity  mineral emissivity spectrum  gas absorption spectrum
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