【作者】 唐远河； 张淳民； 陈光德； 贺健；

【Author】 Tang Yuan he 1,2 Zhang Chun min1 Chen Guang de1 He Jian1 1 Xi’an Jiao Tong University 710049 China 2 Xi’an University of Technology 710048 China

【机构】 西安交通大学理学院；

【摘要】 计算了由于卫星运动、地球自转和大气运动进入干涉成像光谱仪两视场的气辉光线的延时,分别为5.3min、84min和1.5ms。计算出进入两视场气辉光线的一阶时间相干度为0、二阶相干度为1,两视场的气辉彼此不相干,每个视场的光线通过干涉仪发生相干。使用干涉成像光谱技术在阵列CCD上既可获得各视场气辉的干涉信息,又可获得双视场气辉的强度信息,以确定上层大气二维风速矢量。更多还原

【Abstract】 The airglow light into the two field of views(FOVs) has some time delay about 5.3min, 84min and 1.5ms by the satellite’s motion, the earth’s self-rotation and upper atmosphere’s flow, The first and second-order time coherence degrees are calculated between the two FOVs which are not interference light , but the coherent airglow light can be made in every FOV. Through the interference spectrum on CCD detector for every FOV and imaging intensity for two FOVs by the interference and imaging spectrum technique, the 2D velocity vector can be obtained.更多还原