Results 11 to 20 of about 6,407 (152)
Current Developments of Sparse Microwave Imaging
Leida xuebao, 2014 The sparse microwave imaging combines the sparse signal processing theory with radar imaging to obtain new theory, new system, and new methodology of microwave imaging.
Wu Yi-rong +5 more
doaj +1 more source
Region-enhanced passive radar imaging [PDF]
, 2005 The authors adapt and apply a recently-developed region-enhanced synthetic aperture radar (SAR) image reconstruction technique to the problem of passive radar imaging.
Cetin, Mujdat +2 more
core +1 more source
Sparse signal representation for complex-valued imaging [PDF]
, 2009 We propose a sparse signal representation-based method for complex-valued imaging. Many coherent imaging systems such as synthetic aperture radar (SAR) have an inherent random phase, complex-valued nature.
Cetin, Mujdat +3 more
core +1 more source
Compressed sensing of monostatic and multistatic SAR [PDF]
, 2009 In this paper we study the impact of sparse aperture data collection of a SAR sensor on reconstruction quality of a scene of interest. Different mono and multi-static SAR measurement configurations produce different Fourier sampling patterns.
Cetin, Mujdat +3 more
core +4 more sources
Parametric Sparse Representation and Its Applications to Radar Sensing
Leida xuebao, 2016 Sparse signal processing has been utilized to the area of radar sensing. Due to the presence of unknown factors such as the motion of the targets of interest and the error of the radar trajectory, a predesigned dictionary cannot provide the optimally ...
Li Gang, Xia Xiang-Gen
doaj +1 more source
Sparsity-driven image formation and space-variant focusing for SAR [PDF]
, 2011 In synthetic aperture radar (SAR) imaging, the presence of moving targets in the scene causes phase errors in the SAR data and subsequently defocusing in the formed image. The defocusing caused by the moving targets exhibits space-variant characteristics,
Çetin, Müjdat, Önhon, Özben Naime
core +1 more source
Four-dimensional SAR Imaging Algorithm Based on Iterative Reconstruction of Magnitude and Phase
Leida xuebao, 2016 Observation data obtained from the Four-Dimensional (4D) Synthetic Aperture Radar (SAR) system is sparse and non-uniform in the baseline-time plane. Hence, the imaging results acquired by traditional Fourier-based methods are limited by high side lobes ...
Ren Xiaozhen, Yang Ruliang
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 This article proposes an along-track swarm synthetic aperture radar (ATS-SAR) system to accomplish the high frame rate and enhance imaging resolution simultaneously.
Nan Jiang +4 more
doaj +1 more source
Low-rank sparse matrix decomposition for sparsity-driven SAR image reconstruction [PDF]
, 2015 We consider the development of a synthetic aperture radar (SAR) image reconstruction method that decomposes the imaged field into a sparse and a low-rank component.
Soğanlı, Abdurrahim, Çetin, Müjdat
core +2 more sources
3D SAR Imaging Method Based on Learned Sparse Prior
Leida xuebao, 2023 The development of 3D Synthetic Aperture Radar (SAR) imaging is currently hampered by issues such as high data dimension, high system complexity, and low imaging processing efficiency.
Mou WANG +5 more
doaj +1 more source