Results 81 to 90 of about 2,045,084 (313)

Wavelet-Based Compressed Sensing for Polarimetric SAR Tomography [PDF]

open access: yes, 2013
Tomographic synthetic aperture radar (SAR) imaging has been recently formulated in a wavelet-based compressed sensing (CS) framework. This paper reviews the underlying sparsity-driven algorithms for single-channel as well as polarimetric tomography, and ...
Nannini, Matteo   +2 more
core  

Digital Beamforming on Receive: Techniques and Optimization Strategies for High-Resolution Wide-Swath SAR Imaging [PDF]

open access: yes, 2009
Synthetic Aperture Radar (SAR) is a well-proven imaging technique for remote sensing of the earth. However, conventional SAR systems are not capable to fulfill the increasing demands for im-proved spatial resolution and wider swath coverage.
Alberto Moreira   +5 more
core   +1 more source

Bacteria‐Trained, MnO2‐Armored Dendritic Cells for Immunotherapy

open access: yesAdvanced Materials, EarlyView.
MnO2‐armored, bacteria‐trained dendritic cells undergo tumor‐responsive mechanical and immunological transformation. The nanocoating masks immune ligands and maintains a mechanically stiff, quiescent state during circulation, while the tumor microenvironment removes the armor and restores cellular deformability and immune accessibility.
Zhao Guo   +9 more
wiley   +1 more source

Research Progress and Prospects of Synthetic Aperture Radar Image Colorization Algorithms

open access: yesLeida xuebao
Synthetic Aperture Radar (SAR) is a remote sensing technology that utilizes the principle of synthetic aperture to achieve high-resolution microwave imaging. SAR image colorization is a fundamental and crucial task in remote sensing.
Yongkang CHEN   +3 more
doaj   +1 more source

Advanced Digital Beamforming Concepts for High Performance Synthetic Aperture Radar (SAR) Imaging [PDF]

open access: yes, 2009
This paper reviews advanced multi-channel SAR system concepts for the imaging of wide swaths with high resolution. Several novel system architectures employing both direct radiating arrays and reflector antennas fed by a digitial array are introduced ...
Patyuchenko, Anton   +6 more
core  

Kirigami‐Inspired Stretchable Silicon Solar Cell Modules as Portable Power Sources

open access: yesAdvanced Materials, EarlyView.
Kirigami‐inspired structured substrates are designed to craft stretchable silicon solar cell modules, showcasing remarkable stability upon deformation and retaining high output efficiency. This innovative approach holds great promise for the utilization of silicon modules for wearable devices.
Yusheng Zhang   +13 more
wiley   +1 more source

Deep Learning for SAR Image Despeckling [PDF]

open access: yesRemote Sensing, 2019
Speckle filtering is an unavoidable step when dealing with applications that involve amplitude or intensity images acquired by coherent systems, such as Synthetic Aperture Radar (SAR). Speckle is a target-dependent phenomenon; thus, its estimation and reduction require the individuation of specific properties of the image features. Speckle filtering is
LATTARI, FRANCESCO   +5 more
openaire   +4 more sources

Comparison of Precipitation Effects in Spaceborne X- and Ka-band SAR Imaging [PDF]

open access: yes, 2009
As the operating frequencies of SAR-systems are increasing, the visible distortions due to precipitation in SAR-images are becoming more frequent. This holds especially for the case of convective rain events.
Chandra, Madhukar   +3 more
core   +1 more source

A Self‐Cleaning Solar Evaporator Based on MXene/Aramid Nanofiber Aerogels for Efficient Water Desalination

open access: yesAdvanced Materials Interfaces, EarlyView.
This study develops a self‐cleaning solar evaporator based on MXene‐coated aramid nanofiber aerogels for efficient desalination under high‐salinity conditions. The cylindrical evaporator combines strong photothermal conversion, capillary water transport, and self‐rotation triggered by salt accumulation.
Mandeep Singh   +5 more
wiley   +1 more source

Advanced Concepts for High-Resolution Wide-Swath SAR Imaging [PDF]

open access: yes, 2010
This paper reviews advanced multi-channel SAR system concepts for the imaging of wide swaths with high resolution. Several novel system architectures employing both direct radiating arrays and reflector antennas fed by a digital array are introduced ...
Patyuchenko, Anton   +6 more
core  

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