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Processing of Airborne Video SAR Data Using the Modified Back Projection Algorithm

delete2022-01-01
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PRE
AI
J
Jinshan Ding *
C
Chao Zhong
DOI:10.1109/TGRS.2022.3220643delete
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摘要

摘要

En 中文
本文提出了一种最近为视频合成孔径雷达 (ViSAR) 开发的算法框架,并介绍了W波段雷达收集的机载数据的处理结果。该框架旨在加速时域算法并产生无视角变化的合成孔径雷达 (SAR) 视频,这在目标跟踪中是非常理想的。提出的框架包括一些改进的处理算法,其中提出了子孔径递归策略。改进的加速算法避免了插值,并适应高斜视角,而无需旋转图像网格。此外,传统的自动对焦方法已经得到改进,以处理通常包含强散射体的城市数据。该算法框架可以实现不旋转视角的SAR视频,与现有的其他时域方法相比,具有较低的计算量,并在机载实际数据上进行了验证。如果在需要非常高的帧速率的一些情况下孔径高度重叠,则其处理效率变得令人印象深刻。
Keyword:
Cartesian factorized back projection (CFBP)
radar imaging
recursive back projection (RBP)
synthetic aperture radar (SAR)
video SAR (ViSAR)

期刊

IEEE Transactions on Geoscience and Remote Sensing 封面图
IEEE Transactions on Geoscience and Remote Sensing
IF:
8.6
论文数:
2.1W
被引数:
10.7W

机构

X
Xidian University
学者数:
2.4W
论文数: 1.9W
被引数: 9.7K
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