A High-Resolution Airborne SAR Autofocusing Approach Based on SR-PGA and Subimage Resampling With Precise Hyperbolic Model

A High-Resolution Airborne SAR Autofocusing Approach Based on SR-PGA and Subimage Resampling With Precise Hyperbolic Model

High-resolution airborne synthetic aperture radar imaging requires long synthetic aperture time (LSAT). However, the LSAT invalidates the Fresnel approximation in the traditional autofocusing method, leaving a residual signal phase in the motion error. To solve the problem, a signal-reconstruction-b...

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Bibliographic Details
Main Authors: Yuhui Deng, Hui Wang, Guang-Cai Sun, Yong Wang, Wenkang Liu, Jun Yang, Mengdao Xing
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Subjects:
Doppler subimage resampling
hyperbolic model
long synthetic aperture
SAR autofocusing
signal-reconstruction-based phase gradient autofocus (SR-PGA)
synthetic aperture radar (SAR)
Online Access:https://ieeexplore.ieee.org/document/10032728/

Internet

https://ieeexplore.ieee.org/document/10032728/

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