干涉型光谱成像技术是一种新型的光谱成像技术,近些年来发展迅速。 在星载使用时,由于卫星数据传输容量的限制,需要对干涉成像光谱仪获得的原始干涉数据进行压缩,然后经过数据传输,到地面进行解压缩,再进行光谱复原处理,才能交给用户使用,干涉数据的压缩是一项新的技术,国内外很少有专门的文献进行介绍,基于该单位对此技术多年的研究,针对空间调制型干涉光谱成像仪数据的特点,结合环境与灾害监测预报小卫星星座A星超光谱成像仪的数据,提出了一种针对空间调制型干涉成像光谱仪的数据压缩方法,获得了很好的结果。

Fourier transform imaging spectrometer is a new technic,and has been developed very fast in recent ten years. When it is used in satellite,because of the limit by the data transmission,the authors need to compress the original data obtained by the Fourier transform imaging spectrometer,then,the data can be transmitted,and can be incepted on the earth and decompressed. Then the authors can do data process to get spectrum data which can be used by user. Data compression technic used in Fourier transform imaging spectrometer is a new technic,and few papers introduce it at home and abroad. In this paper the authors will give a data compression method,which has been used in EDIS,and achieved a good result.