Results 191 to 200 of about 893,377 (238)

Ship Kelvin Wake Velocity Inversion Method Based on KelvinPointNet in Polarization Images

IEEE Transactions on Geoscience and Remote Sensing
Monitoring ships and their motion states is vital for the marine economy. Traditional methods focus on directly detecting ship hulls but face significant challenges with smaller vessels or those with camouflage patterns on their surfaces.
Hongxu Chen, Deyi Wang, Zhi Zheng, Zhiqi Li, Xiaohao Wang, Yongmei Liu, Jinsong Zhao, Hui Lin, Kai Ni, Qian Zhou   +9 more
openaire   +2 more sources

SAR Image Simulation of Steering Kelvin Wake on Sea Surface With Breaking Waves

IEEE Geoscience and Remote Sensing Letters
Aiming at synthetic aperture radar (SAR) imaging of ship-induced steering wake in the presence of breaking waves, this letter presents a composite electromagnetic (EM) and hydrodynamic modeling approach, combining theoretical analysis with computational ...
Meng-Qing Wang, Peng-Ju Yang, Rui Wu
openaire   +2 more sources

Analysis of the Electromagnetic Scattering Characteristic and Identification of Kelvin Wake on 2-D Sea Surfaces by Feature Selective Validation

Journal of Coastal Research, 2020
Bi, N. and Jiang, T., 2020. Analysis of the electromagnetic scattering characteristic and identification of Kelvin wake on 2-D sea surfaces by feature selective validation. In: Bai, X. and Zhou, H.
Nan Bi, T. Jiang
semanticscholar   +1 more source

Kelvin wake in the presence of surface waves

Physics Letters A, 2006
A kinematics model of ship wake in the presence of wind surface waves is presented. It is found that stationary wave structure behind a ship is different from the well-known Kelvin model and covered a wedge region with the 16.9° angle at the top of wake.
Igor V. Shugan, Kwi-Joo Lee, An Jung Sun
openaire   +1 more source

Rapid Simulation for Passive Millimeter-Wave Imaging of Large-Scale Kelvin Wake Using Wave Height and Brightness Temperature Similarity

IEEE Transactions on Antennas and Propagation
Ship wakes have special millimeter-wave radiation characteristics, which are of great significance for the indirect monitoring technology of sea surface ships based on passive millimeter-wave (PMMW) imaging.
Huimin Xiong, Yayun Cheng, Liang Wu, Jiaran Qi, Jinghui Qiu   +4 more
semanticscholar   +1 more source

A Sub-Aperture Adaptive Partitioning Based on Minimum Entropy Constraint and Incoherent SAR Imaging Algorithm for Kelvin Wake

IEEE International Geoscience and Remote Sensing Symposium
The Kelvin wake imaging quality is poor by utilizing a traditional synthetic aperture radar (SAR) imaging algorithm under a dynamic sea surface background.
Xiaoyu Xue, Qun Yan, Ning Li, Mengdao Xing, Liang Guo, Shiyu Wang   +5 more
semanticscholar   +1 more source

A Study of Electromagnetic Scattering from Kelvin Ship Wake on the Finite Depth Sea Surface

International Conference on Microwave and Millimeter Wave Technology, 2022
In the article, the characteristics of electromagnetic (EM) scattering from ship wake on the finite depth sea surface have been studied. The model of finite depth sea surface is established by introducing the shoaling coefficient firstly. Then the Kelvin
G. Luo, Z. Xiong, M. Zhou, Q. Wan, Z. Ren   +4 more
semanticscholar   +1 more source

Numerical Simulation of Passive Millimeter-Wave Image of Ship Kelvin Wake Using STAR-CCM+

2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)
Passive millimeter-wave (PMMW) detection technology has attracted widespread attention due to its advantages of excellent penetration and concealment. Ship wake covers a wide area and lasts for a long time, which is easier to detect compared to ship, and
Huimin Xiong, Yayun Cheng, Xinyang Ren, Jinghui Qiu   +3 more
semanticscholar   +1 more source

Kelvin and V-like Ship Wakes Affected by Surfactants

Journal of Ship Research, 2001
Synthetic aperture radar (SAR) ship wake images in light wind and calm sea conditions frequently appear in the form of a bright V with a half-angle of 2 to 3 deg. Sophisticated and conflicting explanations of this phenomenon, based on the Bragg scattering mechanism, have been proposed.
Gregory Zilman, Touvia Miloh
openaire   +1 more source

Comparison of three simple models of Kelvin’s ship wake

European Journal of Mechanics - B/Fluids, 2015
Abstract A theoretical explanation of observations of high-Froude-number ship wakes that are narrower than the classical Kelvin 3 9 ∘ angle was recently offered by Rabaud and Moisy. The explanation relies on the assumption that a ship hull does not create waves longer than its length. A validation of this theoretical model has also been
Jiayi He, Chenliang Zhang, Yi Zhu, Huiyu Wu, Chen-Jun Yang, Francis Noblesse, Xiechong Gu, Wei Li   +7 more
openaire   +1 more source