Infrared and Laser Engineering, Volume. 49, Issue 5, 20201006(2020)
Research and applications of In-Situ lunar surface spectral detection technology(Invited)
Figures & Tables(12)
Fig. 6. Spectral properties and mineral chemistry of ''Chang'e-3 ''soils
Fig. 7. "Chang'e-4 "reflectance spectra acquired by the VNIS during the first lunar day
Fig. 9. Spectral response result of the gold board/sample at different temperatures
Table 1. Key technical parameters of VNIS
View tableView in ArticleTable 1. Key technical parameters of VNIS
No. Parameters Spectra VNIR SWIR 1 Spectral range/nm 450-950 900-2 400 2 Resolution 2-7 3-12 3 FOV/ (º) 8.5×8.5 Φ 3.64 SNR/dB ≥31@9% Solar reflectance 5 Power consumption/W 19.8 6 Weight/kg 4.675(probe) ～0.7(electronics)
Table 2. Key technical parameters of LMS
View tableView in ArticleTable 2. Key technical parameters of LMS
Description Specification requirements VIS/NIR SWIR Spectral coverage/nm 480–950 900–3 200 Spectral resolution/nm 5.0–25.0 5.0–25.0 FOV/(°) ≥ 3.0 × 3.0 ≥ 3.0 × 3.0 Effective pixels 256 × 256 1 Quantization/bits ≥10 ≥10 SNR (dB，albedo is 9% and solar incident angle is 45˚) ≥30 ≥30 Spectral sampling interval/nm 5 Power consumption/W 16.0 Weight/kg 5.6
Table 3. Decoded results from the VNIS spectra of the lunar
View tableView in ArticleTable 3. Decoded results from the VNIS spectra of the lunar
Distance/m R ΘTi TiO2 ΘFe FeO OMAT Plagioclase Pyroxene 450 nm 415 nm 750 nm 950 nm CD005 19.79 0.043 0.043 0.070 0.061 1 1.175 5.8% 1.487% 18.8 0.312 15% 20.6% CD006 32.06 0.033 0.033 0.030 0.057 1.154 5.3% 1.482% 18.7 0.157 16.6% 20.3% CD007 38.72 0.027 0.027 0.025 0.047 1.195 6.4% 1.534% 19.5 0.158 17.5% 17.8% CD008 40.89 40.89 0.032 0.029 0.051 1.274 9.0% 1.489% 18.8 0.098 16.3% 13% Avg 6.6% 18.9 0.181 16.4% 17.9%
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Zhiping He, Chunlai Li, Gang Lv, Liyin Yuan, Rui Xu, Jianyu Wang. Research and applications of In-Situ lunar surface spectral detection technology(Invited)[J]. Infrared and Laser Engineering, 2020, 49(5): 20201006
Paper Information
Category: Deep space exploration technology
Received: Mar. 1, 2020
Accepted: --
Published Online: Aug. 17, 2020
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