Chun-Lai LI, Chen-Yu LIU, Jian JIN, Rui XU, Jia-Nan XIE, Gang LYU, Li-Yin YUAN, Xiao LIU, Hong-Gen XU, Jian-Yu WANG. Spectral measurement of minerals and gases based on airborne thermal-infrared hyperspectral imaging system [J]. Journal of Infrared and Millimeter Waves, 2020, 39(6): 767
- Journal of Infrared and Millimeter Waves
- Vol. 39, Issue 6, 767 (2020)
Fig. 1. The process of thermal infrared radiation transmission in mineral imaging in the laboratory
Fig. 2. The data processing flow of mineral emissivity inversion in the laboratory
Fig. 3. Comparison of focal plane images of ATHIS before and ofter abnormal pixel restoration
Fig. 4. Comparison of focal plane images of ATHIS before and ofter radiation calibration
Fig. 5. The process of thermal infrared radiation transmission of gas imaging in laboratory
Fig. 6. The data processing flow of gas comcentration inversion in the laboratory
Fig. 7. Photo showing mineral emissivity measurement in the laboratory
Fig. 8. Spectrum of mineral emissivity measured in the laboratory
Fig. 9. Inversed spectrum of quarz emissivity from ATHIS measurements compared with spectral library
Fig. 10. Comparison of spectral consistency of quarz emissivity retrieved from different spatial dimensions of ATHIS
Fig. 11. Photo showing gas absorption spectrum measurement in the laboratory
Fig. 12. Comparison between measured transmission rate of ammonia and NIST spectral library
Fig. 13. Comparison between measured optical thickness of ammonia and NIST spectral library
Fig. 14. Histogram of ammonia concentration estimated in different bands
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Table 1. 国内外主要热红外高光谱成像仪
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