It ' s the aim for many pepole to improve the image resolution . one of the proper approaches to the aim is the siginal processing based methods in software . it can recover the high resolution image from multiframe undersampled images 提高遥感影像的分辨率一直是人们追求的目标，实现这一目标的有效途径之一便是采用基于信号处理的软件方法，其基本原理是应用同一地区多幅重复观测影像之间的互补信息，用超分辨率重建算法恢复高分辨率图像。
