卫星姿态抖动对LASIS成像质量的影响  

Influence of satellite attitude jitter on LASIS imaging quality

作　　者：余成伟[1] 谌德荣[1] 杨建峰[2] 李湘滨[1] 陆建华[1] 

机构地区：[1]清华大学电子工程系,北京100084 [2]中国科学院西安光学精密机械研究所,西安710068

出　　处：《光电工程》2004年第5期4-6,13,共4页Opto-Electronic Engineering

摘　　要：由于卫星姿态抖动(俯仰、侧滚和偏航)使得LASIS(大孔径静态干涉成像光谱仪)干涉图产 生了非正常的像素偏移量,相邻干涉图之间的非正常偏移量在0.1像素量级或更小,但累积偏移量最多可达上百个像素,必须对干涉图进行校正处理。研究结论为设计正确有效的LASIS图像校正算法提供了参考依据,同时也为卫星平台设计提供了参考。Satellite attitude jitters (pitch, roll and yaw) make interferogram of Large Aperture Static Imaging Spectrometer (LASIS) with abnormal pixel offset. The abnormal offset between adjacent interferograms is equivalent to 0.1 pixel level or less, but the accumulated offset can be up to several hundred pixels, so correction and processing for interferograms must be carried out. Research conclusion provides a reference basis for designing an effective LASIS image correction algorithm, at the same time it also provides a reference for satellite platform design.

关 键 词：大孔径静态干涉成像光谱仪 横向剪切干涉仪 干涉图 卫星姿态抖动 

分 类 号：TH744[机械工程—光学工程]