红外高光谱成像仪(ATHIS)对矿物和气体的实验室光谱测量
投稿时间:2020-05-06  修订日期:2020-07-01  点此下载全文
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作者单位E-mail
李春来 中国科学院上海技术物理研究所 lichunlai@mail.sitp.ac.cn 
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 honggen_xu@163.com 
王建宇 上海技术物理研究所 jywang@mail.sitp.ac.cn 
基金项目:中国科学院青年创新促进会项目(2016218)、“十三五”民用航天预先研究项目“星载高分辨率红外高光谱相机及应用技术(D040104)
中文摘要:在热红外谱段进行高光谱成像遥感具有独特应用优势,特别是在遥感矿物填图和环境污染/危险气体监测方面。目前国际上热红外高光谱成像技术仍处蓬勃发展阶段,主要以实验室样机开发为主,尚未形成规模化应用的商业产品。本文首先介绍了热红外高光谱成像应用的独特优势,然后论述了机载热红外高光谱成像仪(Airborne thermal-infrared hyperspectral imaging system, ATHIS)的灵敏度优化设计方法,结合仪器特点建立介绍了实验室矿物发射光谱和气体吸收光谱测量的辐射模型,分析了样本红外光谱与温度分离的数据处理流程。在此基础上,利用ATHIS开展了矿物发射光谱和气体红外吸收光谱的实验室测量,结果表明利用ATHIS仪器和本文建立的数据方法已具备准确反演矿物发射率光谱和气体吸收光谱的能力,后续将利用该仪器开展多平台的遥感应用试验,为未来开展星载热红外高光谱相机研制和数据处理方法奠定基础。
中文关键词:热红外高光谱成像  绝对温度  探测灵敏度  矿物发射率光谱  气体吸收光谱  
 
Laboratory Spectral Measurement of Minerals and Gases Based on Airborne Thermal-infrared Hyperspectral Imaging System
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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