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2008年9月6日,环境减灾小卫星星座A/B星(HJ-1A/B)成功发射.HJ-1A星上搭载的干涉成像光谱仪是我国第一个对地成像的星载高光谱相机(HSI),同时也是世界上第一个基于干涉成像原理设计的民用高光谱成像仪,具有极为重要的研究与应用价值,是我国星载高光谱相机发展的一个重要里程碑.针对HSI原始干涉数据的特点,研究并建立了HSI数据业务化处理流程与光谱重建的算法,尤其针对干涉数据的预处理,设计了CCD相对辐射校正、全系统校正、滤波、相位修正、切趾等数据预处理算法.目前,该光谱重建流程与算法已在中国资源卫星应用中心多星多任务地面数据处理系统中得到实施和应用,具有极高的运行效率与较理想的处理质量.
On September 6, 2008, HJ-1A / B successfully launched a small satellite constellation for environmental mitigation. The interference imaging spectrometer equipped on HJ-1A satellite was the first satellite-borne hyperspectral camera imaged to Earth (HSI), which is also the first civil hyperspectral imager designed based on the principle of interference imaging in the world, has an extremely important research and application value and is an important milestone in the development of China's spaceborne hyperspectral camera.For HSI original interference data The algorithms of HSI data business process and spectral reconstruction are researched and established. Especially for the preprocessing of the interference data, the algorithms of CCD relative radiation correction, system-wide correction, filtering, phase correction and apodization are designed At present, the spectrum reconstruction process and algorithm have been implemented and applied in the multi - satellite and multitasking terrestrial data processing system of China Resources Satellite Application Center, with extremely high operation efficiency and better processing quality.