CAJ | 학술논문

大视场推扫式成像光谱仪的驻留时间长，覆盖范围大，能比较好地满足海洋遥感的要求。但沿轨和穿轨方向上调制传递函数的差异导致了成像中的“拖影”现像。通过实验获取了系统的线扩散函数；利用插值法构建矩阵来描述系统穿轨方向上的成像特性；使用遥感图像“拖影”区域的梯度平方和作为判别依据对矩阵的系数进行调整；最后使用矩阵对遥感图像进行了矫正。从矫正后的图像来看，“拖影”现像已基本被扣除，证实了该方法的有效性。
대시장추소식성상광보의적주류시간장，복개범위대，능비교호지만족해양요감적요구。단연궤화천궤방향상조제전체함수적차이도치료성상중적“타영”현상。통과실험획취료계통적선확산함수；이용삽치법구건구진래묘술계통천궤방향상적성상특성；사용요감도상“타영”구역적제도평방화작위판별의거대구진적계수진행조정；최후사용구진대요감도상진행료교정。종교정후적도상래간，“타영”현상이기본피구제，증실료해방법적유효성。
Large field imaging spectrometer adopting push-broom has long dwell time and can better meet the requirements of ocean remote sensing. But the difference between the modulation transfer function along and cross the track resulted in smear in the image. This paper obtained line spread function of the system by experiment, constructed a matrix by interpolation to describe the imaging characteristics of the system in the cross-track direction, using smear area in the image as basis to adjust the coefficient of the matrix, and finally got the images corrected by this matrix. After correction, the problem of smear has mostly been deducted, confirming this method to be effective.