Laboratory Spectral Measurement of Minerals and Gases Based on Airborne Thermal-infrared Hyperspectral Imaging System
投稿时间:2020-05-06  修订日期:2020-07-01  download
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李春来 中国科学院上海技术物理研究所 
刘成玉 中国科学院上海技术物理研究所  
金健 中国科学院上海技术物理研究所  
徐睿 中国科学院上海技术物理研究所  
谢嘉楠 中国科学院上海技术物理研究所  
吕刚 中国科学院上海技术物理研究所  
袁立银 中国科学院上海技术物理研究所  
柳潇 中国地质调查局武汉地质调查中心  
徐宏根 中国地质调查局武汉地质调查中心 
王建宇 上海技术物理研究所 
Abstract:It is of unique advantages to apply hyperspectral imaging based remote sensing in the thermal infrared especially in areas of mineral mapping and monitoring of polluted / hazardous gas. However, current the thermal infrared hyperspectral imaging technology is still under development at home and abroad, and researchers mainly focus the development of laboratory prototypes, rather than large-scale applied commercial product. In this paper, we introduce 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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Copyright:《Journal of Infrared And Millimeter Waves》