基于SCFT处理算法的机载SAR运动补偿

Airborne SAR Motion Compensation Based on SCFT Processing Algorithm

该文较为详细地分析了高分辨率机载SAR数据处理中,有关目标距离单元徙动(RCM)校正和平台运动偏差的精确补偿问题。将平台运动偏差分解为空不变和空变分量,利用机载SAR系统传递函数以及SCFT算法,提出了目标RCM校正与平台MOCO合并处理的方法。仿真结果验证了方法的正确性。

This paper detailedly analyzes precise Range Cell Migration（RCM） correction of the targets and motion error compensation of platforrn in high resolution airborne SAR data processing. The motion error of platforrn is divided into space-invariant component and space-variant component. Then the paper proposes an approach of combining RCM correction and platform MOCO using transfer function of airborne SAR system and Scaled Fourier Transform algorithm. The data simulation results verify the validity of the new method.