以便实现观察策略,发生在空间碎片的光观察期间的图象降级是不可避免的并且有不同特征。图象恢复表现为一个方法在空格碎片的电荷耦合器件图象移开降级的影响,基于有象对象的图象的一样的 FWHM 的假定 PSF 模型。在图象恢复的过程,最大的熵方法被采用。减小使用的结果观察到未加工的电荷耦合器件图象显示在估计对象的位置的精确被改进,降级的效果被减少。用图象恢复改进空间碎片的天体测量学有效、可行。
In order to implement an observing strategy, image degradation that occurs during optical observation of space debris is ineluctable and has distinct characteris- tics. Image restoration is presented as a way to remove the influence of degradation in CCD images of space debris, based on assumed PSF models with the same F-WHM as images of the object. In the process of image restoration, the maximum entropy method is adopted. The results of reduction using observed raw CCD images indi- cate that the precision in estimating positions of objects is improved and the effects of degradation are reduced. Improving the astrometry of space debris using image restoration is effective and feasible.