【摘要】 随着空间科学技术的发展 ,空间遥感、侦察的能力日益提高 ,对光学成像系统的分辨率的要求也越来越高。但是这种高分辨率成像系统的成像质量要受到机械振动的影响。可用运动光学传递函数来评价存在机械振动的光学系统的成像特性。本文探讨了计算运动光学传递函数的一种新方法统计矩法 ,研究了当光学系统所成的像在二维方向上存在运动时的运动光学传递函数的解析与数值方法。该方法可以计算任何形式的图像运动导致的成像质量的下降 ,而且可以很方便地应用到一维运动的情况。更多还原

【Abstract】 With the developing of space science and technology, the ability of remote sensing and reconnaissance are improved. So higher resolution capability of image system is needed. The resolution of some image system is high in static condition. But image motion or mechanical vibration limits the resolution. The degradation of image quality as a result of motion in the image plane can be evaluated by optical transfer function of motion. A new method to calculated optical transfer function——statistic moments method is discussed. Analytical and numerical methods to calculate optical transfer function of motion are studied when the image moves in the image plane two dimensionally. This method can be used to calculate the degradation of image quality as a result of any kind of image motion in the image plane, and easily used in the case of one dimensional motion.更多还原