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Ship Wake Detection in SAR Images based on Lightweight Network
2023 International Applied Computational Electromagnetics Society Symposium (ACES-China), 2023A new lightweight network for ship wake detection is proposed. Firstly, the wakes from moving ships are generated based on turbulent and Kelvin wake models.
Jingyu Xin +4 more
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Keypoints Method for Recognition of Ship Wake Components in Sentinel-2 Images by Deep Learning
IEEE Geoscience and Remote Sensing Letters, 2023The wakes generated by moving vessels represent relevant patterns in remotely sensed images. They are a marker of ship presence and can be processed to infer route, speed, size, and type of ships.
Roberto Del Prete, M. Graziano, A. Renga
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A Study of Electromagnetic Scattering from Kelvin Ship Wake on the Finite Depth Sea Surface
International Conference on Microwave and Millimeter Wave Technology, 2022In 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 +4 more
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First Results of Ship Wake Detection by Deep Learning Techniques in Multispectral Spaceborne Images
IEEE International Geoscience and Remote Sensing Symposium, 2022Maritime trade and trasport occupy a pivotal position in the current era of globalization. Thus, monitoring ships at sea represents the starting point of this paper in which a novel approach to detect ships by wake has been proposed, based on Instance ...
Claudio Esposito +3 more
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Analysis of Sea Waves and Ship Wake Detection
Oceans, 2022Observing and modelling the shape of the sea's surface has been of great importance to the researchers seeking to understand the sea waves with the aim of benefitting the safe undertaking of various maritime activities.
Rashi Srivastava, J. Christmas
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Optical influence of ship wakes
Applied Optics, 2004The optical variations observed within ship wakes are largely due to the generation of copious amounts of air bubbles in the upper ocean, a fraction of which accumulate as foam at the surface, where they release scavenged surfactants. Field experiments were conducted to test previous theoretical predictions of the variations in optical properties that ...
Xiaodong, Zhang +4 more
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Ship wake detection by Raman lidar
Applied Optics, 2010We carried out a remote study of ship wakes by optical methods. Both Mie and Raman scattering signals and their evolution were simultaneously recorded by gated detector (intensified CCD). The Mie scattering signal was detectable within 1 min after water disturbance by a high-speed boat.
Alexey F, Bunkin +3 more
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Journal of Fluid Mechanics, 1994
This paper is concerned with the generation of short gravity waves and their radiation from the outer edge of the turbulent boundary layer and wake of a ship. They arise primarily near the ship's stern. The wave spectrum in the direction of wavenumber vector at an angle (90° – δ) to the ship's track is: \[\Phi_{\delta}(\omega) = \Psi\left(\frac{UT_d ...
Gu, Daifang, Phillips, O. M.
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This paper is concerned with the generation of short gravity waves and their radiation from the outer edge of the turbulent boundary layer and wake of a ship. They arise primarily near the ship's stern. The wave spectrum in the direction of wavenumber vector at an angle (90° – δ) to the ship's track is: \[\Phi_{\delta}(\omega) = \Psi\left(\frac{UT_d ...
Gu, Daifang, Phillips, O. M.
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REMOTE SENSING OF SURFACE SHIP WAKES
Naval Engineers Journal, 1992ABSTRACTRecently, there has been much interest in the remote sensing of surface ship wakes using synthetic aperture radar (SAR). Ship wake signatures obtained using a SAR have several prominent features such as a dark trailing centerline region, bright‐line images aligned at some angle to the ship's path, and sometimes the distinctive Kelvin ship wave ...
OWEN M. GRIFFIN +3 more
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Polarimetric mapping of ship wakes
IEEE International Geoscience and Remote Sensing Symposium, 2003This paper addresses the problem of ship wake detection and analysis at low grazing angles. specifically, we examine the spatial distribution of the characteristic polarimetric signatures of the sea surface in and around the wakes of a pilot boat. The received signals were range-processed and polarimetrically decomposed to yield the characteristic ...
J. Morris, S. Anderson, A. Parfitt
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