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9 November 2018 Systematic scheme and key parameters of moon-based imaging spectrometer
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Abstract
With the development of aerospace industry, the detection of the earth itself is no longer limited to satellites outside the atmosphere. As the natural satellite of the Earth, terrestrial observation of the moon has unique advantages such as longterm consistency, integrity and stability. Imaging spectrometer based on the Moon, can improve the ability to observe the earth comprehensively and promote the in-depth study on scientific issues of global change. In this work, in viewing of the perspective of exploring the energy balance of the earth, the location between the earth and the moon as well as observation effect, the advantages and disadvantages of different schemes of the spectrometer component are compared and the system scheme is demonstrated and analyzed. Consequently, with the sub-satellite point ground resolution (5, 10, 20 km) and waveband (8.4-8.9 μm, 10.3-11.4 μm, and 11.5-12.5 μm), the spatial data acquisition method is determined as staring, the spectral data acquisition method is applied to a filter wheel with HgCdTe photoconductive area array detector (15 μm*15 μm) and the optical system aperture (936.96, 468.48, 234.24 mm) focal length (1152, 576, 288 mm) respectively. This work is an initial exploration of the moon-to-earth observation imaging spectrometer, which provides a theoretical basis for the following system implementation.
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Guanyu Zhang, Shengshan Bi, Yuan Zhang, Jiangtao Wu, and Xianyang Meng "Systematic scheme and key parameters of moon-based imaging spectrometer", Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 108260Q (9 November 2018); https://doi.org/10.1117/12.2500064
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