基于运动补偿的圆形SAR地面运动目标成像

Xinyun Wang, B. Deng, Hongqiang Wang, Yuliang Qin
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引用次数: 1

摘要

在静止SAR/CSAR图像中,地面运动目标由于运动未知而产生离焦和错位。提出了一种圆形SAR运动目标成像算法,考虑到运动目标回波信号的特点,利用沿航迹干涉技术估计运动参数,补偿目标运动引起的附加相位。补偿后,应用经典的ω -k算法重建图像。仿真结果验证了该方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ground moving target imaging based on motion compensation for circular SAR
In stationary SAR/CSAR images, ground moving targets are defocused and dislocated due to their unknown motions. This paper presents the moving target imaging algorithm for circular SAR. Considering the characteristic of echo signal of the moving target, additional phase caused by target motion is compensated by estimating motion parameters with along-track interferometry (ATI) technology. After compensation, classic omega-k algorithm is applied to reconstruct the image. Simulation results are given to demonstrate the effectiveness of the proposed method.
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