Chunlai Li, Gang Lv, Liyin Yuan, Yueming Wang, Jian Jin, Yan Xu, Chengyu Liu, Zhiping He, Jianyu Wang. Laboratory calibration and application of the airborne thermal infrared hyperspectral imager (ATHIS)[J]. Infrared and Laser Engineering, 2020, 49(5): 20190117
- Infrared and Laser Engineering
- Vol. 49, Issue 5, 20190117 (2020)
Fig. 1. Structure diagram of cryogenic spectrometer
Fig. 2. Structure of infrared spectrometer in the cryogenic cavity
Fig. 3. Spectral resolution test results of airborne thermal infrared hyperspectral imager (ATHIS)
Fig. 4. Testing scene of absolute spectral location correction method based on CO2 laser
Fig. 5. Absolute spectral location transfer method based on CO2 laser
Fig. 6. Signal curve obtained from monochromator by scanning the R16 line (10 274 nm) of CO2 laser
Fig. 7. Signal curve obtained from monochromator by scanning the P14 line (10 532 nm) of CO2 laser
Fig. 8. Signal curve obtained from monochromator by scanning the R14 line (10 289 nm) of CO2 laser
Fig. 9. Signal curve obtained from monochromator by scanning the P18 line (10 571 nm) of CO2 laser
Fig. 10. Absolute position correspond curve of the monochromator after fitting
Fig. 11. Measurement site for infrared absorption spectra of ammonia
Fig. 12. Ammonia infrared absorption spectrum measured by the ATHIS
Fig. 13. Identification of material properties on top of urban buildings by the ATHIS (Zhoushan, Zhejiang, China)
Fig. 14. Detection results of factory emission from different spectral hyperspectral data (Dongfang, Hainan, China)
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Table 1. List of main characteristic spectral locations of CO2 lasers for testing
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