Results 11 to 20 of about 2,253,897 (339)
Dispersion engineered metasurfaces for broadband, high-NA, high-efficiency, dual-polarization analog image processing. [PDF]
Nat Commun, 2023 Optical metasurfaces performing analog image processing – such as spatial differentiation and edge detection – hold the potential to reduce processing times and power consumption, while avoiding bulky 4 F lens systems.
Cotrufo M, Arora A, Singh S, Alù A.
europepmc +3 more sources
High-Gain Dual-Polarization Microstrip Antenna Based on Transmission Focusing Metasurface. [PDF]
Materials (Basel)In this paper, a single-feed microstrip antenna (MA) equipped with a transmission-mode focusing metasurface (MS) is proposed to achieve dual-polarization capabilities and superior high-gain radiation performance.
Sun Y +7 more
europepmc +2 more sources
Strain-Induced Surface Interface Dual Polarization Constructs PML-Cu/Bi12O17Br2 High-Density Active Sites for CO2 Photoreduction. [PDF]
Nanomicro LettStrain induces coupling in Bi12O17Br2 and Cu porphyrin-based monoatomic layer (PML-Cu), constructing Bi–O bonding interface in PML-Cu/BOB (PBOB). Surface interface dual polarization boosts internal electric field, promoting electron transfer.
Zhang Y +8 more
europepmc +2 more sources
A Dual-Polarization Information Guided Network for SAR Ship Classification [PDF]
Remote Sensing, 2022 Synthetic aperture radar (SAR) is an advanced active microwave sensor widely used in marine surveillance. As part of typical marine surveillance missions, ship classification in synthetic aperture radar (SAR) images is a significant task for the remote ...
Tianwen Zhang, Xiaoling Zhang
semanticscholar +1 more source
IEEE Access, 2022 In this paper, we developed a 2-port dual-band and dual-polarization multiple-input- multiple-output (MIMO) antenna for fifth-generation (5G) mobile applications at 28 and 38 GHz.
Yi-Fan Tsao +2 more
semanticscholar +1 more source
Dual-Polarization Radar Fingerprints of Precipitation Physics: A Review
Remote Sensing, 2022 This article reviews how precipitation microphysics processes are observed in dual-polarization radar observations. These so-called “fingerprints” of precipitation processes are observed as vertical gradients in radar observables.
M. Kumjian +4 more
semanticscholar +1 more source
Remote Sensing, 2022 The distribution of sea ice is one of the major safety hazards for sea navigation. As human activities in polar regions become more frequent, monitoring and forecasting of sea ice are of great significance.
Jiande Zhang +4 more
semanticscholar +1 more source
Mapping Floods in Urban Areas From Dual-Polarization InSAR Coherence Data
IEEE Geoscience and Remote Sensing Letters, 2022 Previous studies have shown that the decrease of temporal interferometric synthetic aperture radar (InSAR) coherence could be exploited to detect the appearance of floodwater in urban areas.
R. Pelich +5 more
semanticscholar +1 more source
Flood Detection in Dual-Polarization SAR Images Based on Multi-Scale Deeplab Model
Remote Sensing, 2022 The proliferation of massive polarimetric Synthetic Aperture Radar (SAR) data helps promote the development of SAR image interpretation. Due to the advantages of powerful feature extraction capability and strong adaptability for different tasks, deep ...
Han Wu +8 more
semanticscholar +1 more source
IEEE Access, 2021 A novel Dual-polarization SAR ship target recognition method based on feature and loss fusion deep network is proposed in this paper, to improve the generalization ability, the recognition accuracy of imbalance samples, and the real-time performance of ...
Gang Xiong +3 more
semanticscholar +1 more source