Results 11 to 20 of about 42,492 (267)
AXION-ELECTROMAGNETIC WAVES [PDF]
Modern Physics Letters A, 2013 We extend the duality symmetry between the electric and the magnetic fields to the case in which an additional axion-like term is present, and we derive the set of Maxwell equations that preserves this symmetry. This new set of equations allows for a gauge symmetry extending the ordinary symmetry in the classical electrodynamics.
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Sensors, 2022 Post-equalization using neural network (NN) is a promising technique that models and offsets the nonlinear distortion in visible light communication (VLC) channels, which is recognized as an essential component in the incoming 6G era.
Zengyi Xu +6 more
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SAR Automatic Target Recognition Based on Numerical Scattering Simulation and Model-based Matching
Leida xuebao, 2015 This study proposes a model-based Synthetic Aperture Radar (SAR) automatic target recognition algorithm. Scattering is computed offline using the laboratory-developed Bidirectional Analytic Ray Tracing software and the same system parameter settings as ...
Zhou Yu, Wang Hai-peng, Chen Si-zhe
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Scaled Sea Surface Design and RCS Measurement Based on Rough Film Medium
Sensors, 2022 The electromagnetic (EM) scattering characteristics of the rough sea surface is very important for target surveying and detection in a sea environment. This work proposes a scaled sea surface designing method based on a rough thin-film medium.
Chenyu Guo +4 more
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4-Bit Optimized Coding Metasurface for Wideband RCS Reduction
IEEE Access, 2019 In this paper, a 4-bit reflective coding metasurface with the polarization-insensitive unit cell is designed for wideband radar cross section (RCS) reduction.
Yasir Saifullah +4 more
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AI-Enabled Intelligent Visible Light Communications: Challenges, Progress, and Future
Photonics, 2022 Visible light communication (VLC) is a highly promising complement to conventional wireless communication for local-area networking in future 6G. However, the extra electro-optical and photoelectric conversions in VLC systems usually introduce exceeding ...
Jianyang Shi +6 more
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Flexible Data Rate V2X Communication System beyond 1.84 Gb/s Based on MIMO VLC and Radar Integration
Applied Sciences, 2020 Vehicle-to-everything (V2X) communication has been widely studied in recent years for the rapid development of the vehicular traffic. In this paper, a V2X communication system integrating the probabilistic shaping (PS) bitloading multi-input-multi-output
Junlian Jia +4 more
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“Hearing“ Electromagnetic Waves
The Physics Teacher, 2014 In this work, an educational experience is described in which a microwave communication link is used to make students aware that all electromagnetic waves have the same physical nature and properties. Experimental demonstrations are linked to theoretical concepts to increase comprehension of the physical principles underlying electromagnetic waves ...
Rojo Martínez, Marta María +1 more
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Characterization of Gas Absorption Modules Based on Flexible Mid-Infrared Hollow Waveguides
Sensors, 2019 A new gas absorption module, the substrate-embedded hollow waveguide (eHWG) model, is proposed. It consists of a substrate with a curved channel and a hollow waveguide. The hollow waveguide is curved into the channel and works as a gas absorption cell as
Kewang Chen +5 more
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Ship Detection in Complex Environment Using SAR Time Series
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Ship detection in complex environment is a challenging task due to strong background inferences, for which various deep-learning-based methods have been proposed.
Shakila Kahar, Fengming Hu, Feng Xu
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