基于尺度傅利叶变换的SAR运动补偿算法

An Airborne SAR Motion Compensation Algorithm Based on SCFT transform

本文对机载合成孔径雷达的运动误差进行定性分析,将载机的运动误差划分为非空变和空变部分分别进行补偿。针对空变的运动误差,利用尺度傅立叶变换(Scaled Fourier Transform)进行距离徙动校正后进行二阶的运动补偿。计算机仿真结果证明了算法的有效性。

This paper analyze the motion error in the airborne synthetic aperture radar. Motion error is divided into range-invariant and range-variant component. A Scaled Fourier Transform algorithm is applied to compensate for the range-variant motion error. The computer simulation proves the effectiveness of this algorithm.