Phase gradient autofocus-a robust tool for high resolution SAR phase correction

Wahl D.E.; Eichel P.H.

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Phase gradient autofocus-a robust tool for high resolution SAR phase correction

机译：相位梯度自动对焦-一种用于高分辨率SAR相位校正的强大工具

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The phase gradient autofocus (PGA) technique for phase error correction of spotlight mode synthetic aperture radar (SAR) imagery is examined carefully in the context of four fundamental signal processing steps that constitute the algorithm. We demonstrate that excellent results over a wide variety of scene content, and phase error function structure are obtained if and only if all of these steps are included in the processing. Finally, we show that the computational demands of the fun PGA algorithm do not represent a large fraction of the total image formation problem, when mid to large size images are involved.

机译：在构成算法的四个基本信号处理步骤的背景下，仔细检查了用于聚光模式合成孔径雷达（SAR）图像相位误差校正的相位梯度自动对焦（PGA）技术。我们证明，当且仅当所有这些步骤都包括在处理中时，才能在多种场景内容和相位误差函数结构上获得出色的结果。最后，我们表明，当涉及中型到大型图像时，有趣的PGA算法的计算需求并不代表总图像形成问题的很大一部分。

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《IEEE Transactions on Aerospace and Electronic Systems》 |1994年第3期|P.827-835|共9页
作者
Wahl D.E.; Eichel P.H.;
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正文语种 eng
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1. Phase gradient autofocus-a robust tool for high resolution SARphase correction [J] . Wahl D.E., Eichel P.H., Ghiglia D.C., IEEE Transactions on Aerospace and Electronic Systems . 1994,第3期

机译：相位梯度自动对焦-一种用于高分辨率SAR相位校正的强大工具
2. Deep Convolutional Neural Network-Based Robust Phase Gradient Estimation for Two-Dimensional Phase Unwrapping Using SAR Interferograms [J] . Zhou Lifan, Yu Hanwen, Lan Yang IEEE Transactions on Geoscience and Remote Sensing . 2020,第7期

机译：基于深度卷积神经网络的鲁棒相位梯度估计，用于使用SAR干扰图的二维相位展示
3. Robust Channel Phase Error Calibration Algorithm for Multichannel High-Resolution and Wide-Swath SAR Imaging [J] . Linjian Zhang, Yesheng Gao, Xingzhao Liu IEEE Geoscience and Remote Sensing Letters . 2017,第5期

机译：用于多通道高分辨率和宽幅SAR成像的鲁棒通道相位误差校准算法
4. Phase Gradient Autofocus for SAR Phase Correction: Explanation and Demonstration of Algorithmic Steps [C] . Eichel, P.H., Ghiglia, . 2001

机译：SAR相位校正的相位梯度自动聚焦：算法步骤的解释和演示
5. Phase Error Correction of Synthetic Aperture Radar Images Using Phase Gradient Autofocus on Overlapping Sub-aperture Collections [D] . Replogle, Nolan. 2016

机译：相位误差校正合成孔径雷达图像在重叠子孔径集合上使用相位梯度自动聚焦
6. Robust phase retrieval for high resolution edge illumination x-ray phase-contrast computed tomography in non-ideal environments [O] . Anna Zamir, Marco Endrizzi, Charlotte K. Hagen, -1

机译：在非理想环境中进行高分辨率边缘照明X射线相衬计算机断层扫描的鲁棒相位检索
7. Noise-robust Phase Gradient Retrieval Formulation for Phase-shifting Interferometry [O] . Dae-Seo Park, Beom-Hoan O, Se-Geun Park, 2010

机译：相移干涉法的噪声稳健相位梯度检索制剂
8. Phase gradient autofocus for SAR phase correction: Explanation and demonstration of algorithmic steps. [R] . P. H. Eichel D. C. Ghiglia C. V. Jakowatz D. E. Wahl 1992

机译：用于saR相位校正的相位梯度自动对焦：算法步骤的说明和演示。

Phase gradient autofocus-a robust tool for high resolution SAR phase correction

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