Fast and Accurate Refocusing for Moving Ships in SAR Imagery Based on FrFT

Synthetic aperture radar (SAR) is capable of monitoring the ocean all day, regardless of weather conditions. However, moving ships exhibit azimuth defocus in SAR images, which severely hampers ship recognition performance. Ships typically move in a linear motion at sea. For refocusing linear moving...

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Bibliographic Details
Main Authors: Jin Wang, Xiangguang Leng, Zhongzhen Sun, Xi Zhang, Kefeng Ji
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/15/14/3656