一种改进的斜视SAR运动补偿波数域算法

A Kind of Method of Extended Wavenumber Domain Algorithm for Squint SAR Motion Compensation

准确的运动补偿是高分辨率机载SAR成像的关键。为了获得高质量的斜视SAR图像,该文详细研究了用改进的波数域算法处理带有运动误差的斜视SAR数据,提出了一种改进的斜视SAR运动补偿波数域算法,并用该算法进行了点目标仿真和对原始数据成像,结果表明,该算法对处理带有运动误差的斜视SAR数据有很好的效果。

Accurate motion compensation is a key issue for high-resolution airborne SAR imaging. In order to attain high-quality squint SAR images, it is detailedly discussed that Extended Wavenumber Domain （EWD） algorithm combines two-step motion compensation technique processing squint SAR data affected by motion error in the paper, a kind of method of squint EWD algorithm is put forward, simulation and real SAR data processing results with this method are given to prove the feasibility of such algorithm.