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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >3-D InISAR Imaging of the Ship Target Based on Joint Cross S-Method Algorithm
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3-D InISAR Imaging of the Ship Target Based on Joint Cross S-Method Algorithm

机译：基于联合交叉S方法的舰船目标3-D InISAR成像

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摘要

3-D interferometric inverse synthetic aperture radar (InISAR) imaging of ship targets has always been a hot and difficult issue in research, and how to preserve the interferometric phase while performing high-resolution 2-D ISAR imaging of the complex echoes is the key to 3-D InISAR imaging. In this letter, a novel 3-D InISAR imaging algorithm of the ship target based on joint cross S-method is proposed. First, the azimuth short-time Fourier transform (STFT) is applied to the 1-D range profiles after motion compensation and image coregistration. Then, extract the interferometric phase matrices after performing the joint cross S-method transformation of the STFT results along the two baselines. Besides, the S-method transformations are implemented recursively for the joint cross S-method transformed results to obtain high-resolution ISAR images. Finally, the 3-D InISAR imaging can be achieved by combining the phase matrices and ISAR images at the same time. Simulation results verify the effectiveness and superiority of the proposed algorithm.
机译：舰船目标的3D干涉式反向合成孔径雷达（InISAR）成像一直是研究中的热点和难点问题，如何在执行复杂回波的高分辨率2-D ISAR成像时如何保持干涉相位是关键到3D InISAR成像。本文提出了一种基于联合交叉S法的舰船目标3-D InISAR成像新算法。首先，在运动补偿和图像融合之后，将方位短时傅立叶变换（STFT）应用于一维范围轮廓。然后，沿着两个基线对STFT结果执行联合交叉S方法转换后，提取干涉相矩阵。此外，针对联合交叉S方法转换结果递归实现S方法转换，以获得高分辨率的ISAR图像。最后，可以通过同时组合相位矩阵和ISAR图像来实现3-D InISAR成像。仿真结果验证了该算法的有效性和优越性。

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