Sparsity-driven bandwidth factorisation autofocus of high-resolution squint SAR imagery reconstructed by FFBP

Sparsity-driven bandwidth factorisation autofocus of high-resolution squint SAR imagery reconstructed by FFBP

In large squint high-resolution cases, smearing introduced by path deviation and air turbulence in synthetic aperture radar (SAR) imagery reconstructed via fast factorised backprojection algorithm (FFBP) will exist along space variant oblique angles. To refocus the blurred FFBP imagery, a motion pha...

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Bibliographic Details
Main Authors: Xin Wang, Xiaoxiao Sun
Format: Article
Language:English
Published: Wiley 2019-07-01
Series:The Journal of Engineering
Subjects:
radar imaging
synthetic aperture radar
image reconstruction
image motion analysis
image resolution
sparsity-driven bandwidth factorisation autofocus
high-resolution squint SAR imagery
squint high-resolution cases
path deviation
air turbulence
synthetic aperture radar imagery
fast factorised backprojection algorithm
space variant oblique angles
blurred FFBP imagery
motion phase error estimation
compensation methodology
range bandwidth factorisation
lower resolution data
sparsity-driven combination
high-resolution refocused imagery
bandwidth-factorisation-based autofocus algorithm
Online Access:https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0318

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