Chin. Phys. Lett.  2017, Vol. 34 Issue (9): 094101    DOI: 10.1088/0256-307X/34/9/094101
FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
Effects of Breaking Waves on Composite Backscattering from Ship-Ocean Scene
Jin-Xing Li, Min Zhang**, Peng-Bo Wei
School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071
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Abstract The existence of the sea surface is bound to affect the electromagnetic (EM) scattering from marine targets. When dealing with the composite scattering from targets over a sea surface by applying high-frequency EM theories, the total scattering field can be decomposed into three parts in low sea states, namely, the direct scattering from the sea surface, the direct scattering from targets and the coupling scattering between the sea surface and targets. With regard to high sea states, breaking waves make the direct scattering from the sea surface and the coupling scattering more complicated. To solve this issue, a scattering model is proposed to analyze the composite scattering from a ship over a rough sea surface under high sea states. To consider the effect of breaking waves, a three dimensional geometric model is adopted together with Ufimtsev's theory of edge waves for the scattering from a breaker. In addition, the coupling scattering between targets and breaking waves is taken into account by considering all possible scattering paths. The simulated results indicate that the influence of breaking waves on the scattering field from the sea surface and on the coupling field is non-negligible, and the numerical results also show the effectiveness of the proposed scattering model.
Received: 01 June 2017      Published: 15 August 2017
PACS:  41.20.Jb (Electromagnetic wave propagation; radiowave propagation)  
  84.40.Xb (Telemetry: remote control, remote sensing; radar)  
  91.50.Iv (Marine magnetics and electromagnetics)  
Fund: Supported by the National Natural Science Foundation of China under Grant No 61372004, the Fundamental Research Funds for the Central Universities, and the Foundation of Science and Technology on Electromagnetic Scattering Laboratory.
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Jin-Xing Li, Min Zhang, Peng-Bo Wei 2017 Chin. Phys. Lett. 34 094101
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http://cpl.iphy.ac.cn/10.1088/0256-307X/34/9/094101       OR      http://cpl.iphy.ac.cn/Y2017/V34/I9/094101
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Jin-Xing Li
Min Zhang
Peng-Bo Wei
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