通过分析飞行器姿态对像移补偿结果的影响,提出空间相机对飞行器姿态精度的要求以实现高精度的像移补偿。根据调制传递函数对像移匹配特性的要求进行分析,确定了允许的像移匹配误差。然后,用蒙特卡洛法（即统计试验法）对像移速度误差进行分析和计算。最后,确定了满足空间相机像移补偿要求的姿态精度。通过计算得出,满足96级TDI-CCD像移匹配误差要求的飞行器指向精度应优于0.1°,姿态稳定度应优于0.005 °/s。实验结果表明,本文提出的方法简单,易于实现,适用于空间相机像移补偿系统的研究。

In order to realize high precision image motion compensation,the requirements of space camera system was put forward by analyzing the effect of aerocraft attitude on image motion compensation.The image motion match characteristics demaned by Modulation Transform Function(MTF) of camera was analysed to determine the permitted errors of image motion matching.Then,the Monto-Carlo method (statistic distribution method) was used to analyse and calculate the errors of image motion velocity.Finally,the attitude accuracy suitable for image motion compensation was abtained.The conclusions drawn by calculation suggest that the attitude accuracy should be higher than 0.1° and the attitude stability accuracy higher than 0.005°/s,which can meet the requirements of errors of image motion matching of 96 TDI-CCD integration progression.The method is simple,easy to implement and suitable for the study of image motion compensation of space camera system.