Electromagnetic Scattering from Two-Dimensional Dielectric Rough Sea Surfaces with Ship-Induced Kelvin Wake

2019 ◽  
Author(s):  
Rui Wu ◽  
Pengju Yang ◽  
Xincheng Ren ◽  
Yuqiang Zhang ◽  
Yuqing Wang
Keyword(s):  
Electromagnetic Scattering ◽  
Two Dimensional ◽  
Rough Sea

scholarly journals Polarimetric Scattering from Two-Dimensional Dielectric Rough Sea Surface with a Ship-Induced Kelvin Wake

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Pengju Yang ◽  
Lixin Guo
Keyword(s):  
Electromagnetic Scattering ◽  
Sea Surface ◽  
Two Dimensional ◽  
Ship Wake ◽  
Enhanced Backscattering ◽  
Rough Sea Surface ◽  
Configuration Simulation ◽  
Depolarized Scattering ◽  
Limited Surface ◽  
Rough Sea

Based on the polarimetric scattering model of second-order small-slope approximation (SSA-II) with tapered wave incidence for reducing the edge effect caused by limited surface size, monostatic and bistatic polarimetric scattering signatures of two-dimensional dielectric rough sea surface with a ship-induced Kelvin wake is investigated in detail by comparison with those of sea surface without ship wake. The emphasis of this paper is on an investigation of depolarized scattering and enhanced backscattering of sea surface with a ship wake that changes the sea surface geometric structure especially for low wind conditions. Numerical simulations show that in the plane of incidence rough sea surface scattering is dominated by copolarized scattering rather than cross-polarized scattering and that under low wind conditions a larger ship speed gives rise to stronger enhanced backscattering and enhanced depolarized scattering. For both monostatic and bistatic configuration, simulation results indicate that electromagnetic scattering signatures in the presence of a ship wake dramatically differ from those without ship wake, which may serve as a basis for the detection of ships in marine environment.

scholarly journals Study of electromagnetic scattering from two-dimensional rough sea surface based on improved Wen’s spectrum

2014 ◽  
Vol 63 (13) ◽  
pp. 134203
Author(s):  
Wu Geng-Kun ◽  
Ji Guang-Rong ◽  
Ji Ting-Ting ◽  
Ren Hong-Xia
Keyword(s):  
Electromagnetic Scattering ◽  
Sea Surface ◽  
Two Dimensional ◽  
Rough Sea Surface ◽  
Rough Sea

Near Field Electromagnetic Scattering Model Studying for Coarse Sea Surface

2013 ◽  
Vol 756-759 ◽  
pp. 4586-4590
Author(s):  
Jun Gu ◽  
Kun Cai ◽  
Zi Chang Liang
Keyword(s):  
Electromagnetic Scattering ◽  
Near Field ◽  
Horn Antenna ◽  
Measured Data ◽  
Sea Surface ◽  
Scattering Coefficient ◽  
Distributed Model ◽  
Echo Signal ◽  
Scattering Model ◽  
Rough Sea

The simulated PM-spectrum fractal sea surfaces and the 3-D near-field distributed model of horn antenna are built, the near-field formulas of KA method are deduced. The near-field scattering coefficient and the Doppler echo signal of rough sea surfaces are calculated, the agreement with measured data proved the correctness and validity of the near-field scattering model.

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