低空条带图SAR相位梯度自动对焦算法的扩展

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI:10.1109/IGARSS.1999.773566

D.G. Thompson, J.S. Bates, D. Arnold, D. Long

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引用次数: 78

摘要

相位梯度自动对焦(PGA)算法被广泛应用于聚束合成孔径雷达(SAR)中，以消除图像中的运动模糊。PGA算法已被证明是一种优越的自动对焦方法。标准的PGA算法仅适用于聚光灯模式SAR。我们描述了一种新的算法，允许PGA应用于条形模式SAR。使用三幅不同特征的SAR图像来演示该算法。

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Extending the phase gradient autofocus algorithm for low-altitude stripmap mode SAR

The phase gradient autofocus (PGA) algorithm has been widely used in spotlight synthetic aperture radar (SAR) to remove motion-induced blurs in the images. The PGA algorithm has been proven to be a superior autofocus method. This algorithm is extended for application to low-altitude stripmap mode SAR. Standard PGA algorithms are formulated only for spotlight-mode SAR. We describe a new algorithm which allows PGA to be applied to stripmap-mode SAR. Three SAR images with different characteristics are used in demonstrating this algorithm.

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来源期刊

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293)

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