Results 31 to 40 of about 104,786 (306)
Leida xuebao, 2022 A geosynchronous (GEO) satellite can provide continuous illumination with broad beam coverage for a Low Earth Orbit (LEO) receiver, used as the transmitting station of bistatic Synthetic Aperture Radar (SAR).
Hongyang AN +4 more
doaj +1 more source
SAR moving target imaging in a sparsity-driven framework [PDF]
, 2011 In synthetic aperture radar (SAR) imaging, sparsity-driven imaging techniques have been shown to provide high resolution images with reduced sidelobes and reduced speckle, by allowing the incorporation of prior information about the scene into the ...
Cetin, Mujdat +3 more
core +1 more source
Quadrature Compressive Sampling SAR Imaging [PDF]
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018 4 pages, 2 figures, submitted to IGARSS ...
Yang, Huizhang +3 more
openaire +2 more sources
Research on Configuration Constraints of Airborne Bistatic SARs
Sensors, 2022 Based on the analysis of the airborne bistatic synthetic aperture radar (SAR) imaging geometric mode, an extended nonlinear chirp scaling algorithm is employed to simulate and verify the imaging effect of the bistatic SARs.
Yidi Chen +5 more
doaj +1 more source
Indian Journal of Radiology and Imaging, 2018 Posterior reversible encephalopathy syndrome (PRES) is a well-documented pathology of the brain in systemic upsets. Majority of PRES cases present with edema in the cerebrum, most commonly in the territory of posterior circulation.
Pui Kwan Joyce Chan +3 more
doaj +1 more source
End-to-End SAR Deep Learning Imaging Method Based on Sparse Optimization
Remote Sensing, 2021 Synthetic aperture radar (SAR) imaging has developed rapidly in recent years. Although the traditional sparse optimization imaging algorithm has achieved effective results, its shortcomings are slow imaging speed, large number of parameters, and high ...
Siyuan Zhao +4 more
doaj +1 more source
Advanced Synthetic Aperture Radar Based on Digital Beamforming and Waveform Diversity [PDF]
, 2008 This paper introduces innovative SAR system concepts for the acquisition of high resolution radar images with wide swath coverage from spaceborne platforms.
Gebert, Nicolas +3 more
core +1 more source
Experimental Synthetic Aperture Radar with Dynamic Metasurfaces
, 2017 We investigate the use of a dynamic metasurface as the transmitting antenna for a synthetic aperture radar (SAR) imaging system. The dynamic metasurface consists of a one-dimensional microstrip waveguide with complementary electric resonator (cELC ...
Boyarsky, Michael +6 more
core +2 more sources
Fast Compressive Sensing-Based SAR Imaging Integrated With Motion Compensation
IEEE Access, 2019 Recently, compressive sensing (CS) has been applied in synthetic aperture radar (SAR) imaging, which is increasingly in the focus of study and shows great potential.
Wei Pu +4 more
doaj +1 more source
Faz hatalı SAR verileri için karesel olmayan düzenlileştirmeye dayalı bir görüntü oluşturma tekniği (A nonquadratic regularization based image reconstruction technique for SAR data with phase errors) [PDF]
, 2009 Sentetik Açıklıklı Radar (SAR) görüntülemesinde karşılaşılan önemli problemlerden biri faz hatalarıdır. Faz hataları, SAR’ın bulunduğu platformla hedef arasındaki uzaklığın tam olarak ölçülememesi ya da gönderilen işaretlerin atmosferdeki türbülansa ...
Cetin, Mujdat +3 more
core +1 more source