The Space Flight Laboratory launches the NorSat-4 satellite (onboard optical camera) with advanced maritime monitoring capabilities for Norway
2025年10月16日Chasing dreams in the sky, park enterprises contribute their strength!
2025年10月16日Abstract: In the development and application of miniaturized imaging spectrometers, how to simultaneously achieve lightweight, high ground resolution, and high signal-to-noise ratio is currently an urgent technical challenge that needs to be overcome. This article combines linear gradient filter spectroscopy technology with digital domain time delay integration technology, and compacts the lens to design a lightweight spaceborne hyperspectral imaging spectrometer with a working band of 403-988 nm, an average spectral resolution of 8.9 nm, and a total system mass of 7 kg. Simulation and experimental results show that the hyperspectral imaging instrument can obtain hyperspectral images with a cutting width of 50.5 km and a ground resolution of 10 m on a 500 km orbit, and the image signal-to-noise ratio is good. This imaging spectrometer can provide technical support for obtaining high-resolution hyperspectral images for micro nano satellites, promoting the development of hyperspectral remote sensing detection technology in China.