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Proceedings Paper

Calibration of Visible and Near-infrared Imaging Spectrometer (VNIS) on lunar surface
Author(s): Rui Xu; Gang Lv; Yan-hua Ma; Jianyu Wang
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Paper Abstract

Visible and Near-infrared Imaging Spectrometer (VNIS) is one of the scientific payloads mounted on “Yutu” rover in Chang’e 3 lunar exploration project. The VNIS is composed with a visible and near-infrared (0.45-0.95 μm) spectral imager and a short waveband (0.9-2.4 μm) spectrometer on basis of Acousto-Optic Tunable Filter. According to the in-situ analysis, a calibration unit was also equipped for high precisely spectral radiance and reflectance inversion by using solar as standard calibration source. The calibration unit was driven by lightweight ultrasonic motor, and it could be located on three fixed position including detection (full-opened), calibration (horizontal) and dust-proof (closed). In this paper, the principle of VNIS, especially calibration unit was described firstly. Then, radiometric correction algorithms on lunar surface based on standard solar spectral irradiance were expounded. Through the analysis of VNIS scientific data, the spectral radiance and reflectance curves of detection area were shown in the end.

Paper Details

Date Published: 18 November 2014
PDF: 9 pages
Proc. SPIE 9263, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications V, 926315 (18 November 2014); doi: 10.1117/12.2068947
Show Author Affiliations
Rui Xu, Shanghai Institute of Technical Physics (China)
Gang Lv, Shanghai Institute of Technical Physics (China)
Yan-hua Ma, Shanghai Institute of Technical Physics (China)
Jianyu Wang, Shanghai Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 9263:
Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications V
Allen M. Larar; Makoto Suzuki; Jianyu Wang, Editor(s)

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