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Minimum Entropy Autofocus Correction of Range-Varying Phase Errors in ISAR Imagery

机译：ISAR图像中变化范围相位误差的最小熵自动聚焦校正

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In this article, we present an ISAR autofocus algorithm that compensates for range-varying phase errors which can degrade ISAR imagery formed with an unknown rotation rate. Our algorithm is non-parametric and is capable of dealing with a non-constant rotation rate. The algorithm described is based on optimizing image focus by minimizing the image entropy.

机译：在本文中，我们提出了一种ISAR自动对焦算法，该算法可补偿范围可变的相位误差，该误差会降低以未知旋转速度形成的ISAR图像的质量。我们的算法是非参数的，并且能够处理非恒定转速。所描述的算法基于通过最小化图像熵来优化图像聚焦。

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《International Radar Conference》|2020年|357-361|共5页
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Joshua M. Kantor;
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关键词
Inverse Synthetic Aperture Radar; ISAR; auto-focus;

机译：逆合成孔径雷达; ISAR;自动聚焦;

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专利

1. Correction to “An Azimuth-Dependent Phase Gradient Autofocus (APGA) Algorithm for Airborne/Stationary BiSAR Imagery” [J] . Zhou S., Xing M., Xia X.-G., IEEE Geoscience and Remote Sensing Letters . 2013,第6期

机译：对“机载/静止BiSAR图像的方位相关相位梯度自动聚焦（APGA）算法”的修正
2. Improved phase gradient autofocus algorithm based on segments of variable lengths and minimum-entropy phase correction [J] . Abd Elhalek Azouz Ahmed, Zhenfang Li Radar, Sonar & Navigation, IET . 2015,第4期

机译：基于可变长度段和最小熵相位校正的改进相位梯度自动聚焦算法
3. Minimum Entropy via Subspace for ISAR Autofocus [J] . Cao P., Xing M., Sun G., Geoscience and Remote Sensing Letters, IEEE . 2010,第1期

机译：通过ISAR自动对焦的子空间的最小熵
4. Improved phase gradient autofocus algorithm based on segments of variable lengths and minimum entropy phase correction [C] . Azouz Ahmed, Li Zhenfang IEEE China Summit International Conference on Signal and Information Processing . 2014

机译：基于可变长度段和最小熵相位校正的改进相位梯度自动聚焦算法
5. Synthetic aperture radar autofocus: A comparison of phase gradient and minimum entropy algorithms [D] . Dunn, James. 2014

机译：合成孔径雷达自动聚焦：相位梯度和最小熵算法的比较
6. Calibration of Linear Time-Varying Frequency Errors for Distributed ISAR Imaging Based on the Entropy Minimization Principle [O] . Hailong Kang, Jun Li, Hongyan Zhao, 2019

机译：基于熵最小化原理的分布式ISAR成像线性时变频率误差标定
7. Autofocus Correction of Azimuth Phase Error and Residual Range Cell Migration in Spotlight SAR Polar Format Imagery [O] . Mao, Xinhua, Zhu, Daiyin, Zhu, Zhaoda 2012

机译：方位角相位误差和残余范围单元的自动对焦校正聚光saR saR极化图像的迁移
8. Minimum Entropy Autofocus Correction of Residual Range Cell Migration. [R] . Kantor, J. M. 2017

机译：剩余范围细胞迁移的最小熵自动聚焦校正。

Minimum Entropy Autofocus Correction of Range-Varying Phase Errors in ISAR Imagery

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