Small and high-resolution spaceborne hyperspectral imaging spectrometer [轻小型高分辨率星载高光谱成像光谱仪]

作者：Fan X.-H.; Liu C.-Y.^*; Jin G.; Liu S.; Xie Y.-Q.; Xu T.-T.; Feng Q.-P.; Wang J.

来源：Optics and Precision Engineering, 2021, 29(3): 463-473.

DOI：10.37188/OPE.20212903.0463

• Apochromatism
• Digital
• High ground resolution
• Imaging spectrometer
• Linear variable filter

Currently, there is an urgent need for a small, high-resolution imaging spectrometer for remote sensing. According to the load requirements of the hyperspectral micro-nano satellite, this study combined a linear variable filter and digital TDI technology, and the lens was compacted and apochromatic in ZEMAX. Consequently, a light and small spaceborne hyperspectral imaging spectrometer was designed with a working band of 403-988 nm, an average spectral resolution of 8.9 nm, and a total system mass of 7 kg. The simulation and experimental results show that the hyperspectral imaging spectrometer can achieve a high-ground-resolution hyperspectral image with a swath width of 50.5 km and a ground resolution of 10 m on a 500 km track, and the image signal-to-noise ratio is good. The imaging spectrometer combines the characteristics of low weight and high ground resolution, thereby aiding the development of hyperspectral micro/nano satellites.

• 出版日期2021
• 单位中国科学院大学