Sparsity-driven synthetic aperture radar imaging: Reconstruction, autofocusing, moving targets, and compressed sensing

M Çetin, I Stojanović, NÖ Önhon… - IEEE Signal …, 2014 - ieeexplore.ieee.org
This article presents a survey of recent research on sparsity-driven synthetic aperture radar
(SAR) imaging. In particular, it reviews 1) the analysis and synthesis-based sparse signal …

An augmented Lagrangian method for complex-valued compressed SAR imaging

HE Güven, A Güngör, M Cetin - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
In this paper, we present a solution to the complex synthetic aperture radar (SAR) imaging
problem within a constrained optimization formulation where the objective function includes …

Design of a Compact V-Band Transceiver and Antenna for Millimeter-Wave Imaging Systems

MJ Horst, MT Ghasr, R Zoughi - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In this paper, we introduce a synthetic aperture radar (SAR)-based millimeter-wave imaging
system for highresolution imaging of human skin, in addition to traditional nondestructive …

Joint image formation and two-dimensional autofocusing for synthetic aperture radar data

T Scarnati, A Gelb - Journal of Computational Physics, 2018 - Elsevier
Imaging via synthetic aperture radar (SAR) is a well-established technique for effective
scene reconstruction, with resolution up to a few centimeters. The measurement process …

Sparse regularization with a non-convex penalty for SAR imaging and autofocusing

ZY Zhang, O Pappas, IG Rizaev, A Achim - Remote Sensing, 2022 - mdpi.com
In this paper, SAR image reconstruction with joint phase error estimation (autofocusing) is
formulated as an inverse problem. An optimization model utilising a sparsity-enforcing …

[图书][B] Recent techniques for regularization in partial differential equations and imaging

T Scarnati - 2018 - search.proquest.com
Inverse problems model real world phenomena from data, where the data are often noisy
and models contain errors. This leads to instabilities, multiple solution vectors and thus ill …

Combination of correlated phase error correction and sparsity models for SAR

T Sanders, T Scarnati - Computational Imaging II, 2017 - spiedigitallibrary.org
Direct image formation in synthetic aperture radar (SAR) involves processing of data
modeled as Fourier coefficients along a polar grid. Often in such data acquisition processes …

Sparsity-driven autofocus for multipass sar tomography

F Muirhead, B Mulgrew… - SAR Image Analysis …, 2015 - spiedigitallibrary.org
Synthetic aperture radar (SAR) systems produce high resolution, two dimensional imaging
of areas of environmental interest. SAR interferometry and tomography enables these …

[PDF][PDF] Dictionary learning for multiplicative distortions with applications to SAR autofocus

JHG Ender, O Loffeld, F Giovanneschi - eurasip.org
Linearly constrained dictionary learning (LCDL). The dictionary learning problem and the K-
SVD algorithm can be modified to a model including an unknown multiplicative distortion to …

[PDF][PDF] Compressed Sensing Solutions for Airborne Low Frequency SAR

ME Davies, SI Kelly - udrc.eng.ed.ac.uk
Interaction of Reflectors in a Range Cell▶ Random interference: Speckle dominates images
due to many random reflectors in a range cell inducing multiplicative noise in the …