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Reliable Approach for EM Scattering Calculation from Sea Surface Covered with Foams Based on MFBM and VRT Theory

机译:基于MFBM和VRT理论的泡沫覆盖海面电磁散射的可靠计算方法

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摘要

A reliable approach based on modified facet-based model and Vector Radiative Transfer theory is presented to calculate electromagnetic scattering from a particular electrically large sea surface superimposed with foams, which can handily give both monostatic and bistatic scattering results and could be applied to synthetic aperture radar imagery simulation. The facet model is derived from Fuks' first-order small perturbation method function, and then the Kirchhoff model is introduced to revise the results in view of the dependency on cut-off wave number at near vertical incidence angles. Additionally, the contributions of foams are taken into consideration on the basis of Vector Radiative Transfer theory. The accuracy and superiority of this proposed approach are demonstrated in comparison with traditional facet model, which illustrates that the results of this approach agree better with experimental results. Moreover, several examples are given to verify that the proposed approach is of more significance at large incidence angles and high wind speed.
机译:提出了一种基于改进的基于小平面的模型和矢量辐射传递理论的可靠方法,该方法可用于计算从特定的电大海表面上叠加有泡沫的电磁散射,该电磁散射可轻松给出单静态和双静态散射结果,并可应用于合成孔径雷达影像模拟。刻面模型是从Fuks的一阶小扰动方法函数导出的,然后引入Kirchhoff模型以考虑在接近垂直入射角时对截止波数的依赖性来修改结果。另外,在矢量辐射传递理论的基础上考虑了泡沫的贡献。与传统的方面模型相比,该方法的准确性和优越性得到了证明,表明该方法的结果与实验结果更好地吻合。此外,给出了几个例子,以验证所提出的方法在大入射角和高风速下更有意义。

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  • 来源
    《Mathematical Problems in Engineering》 |2018年第2期|2035381.1-2035381.8|共8页
  • 作者单位

    Air Force Engn Univ, Xian 710051, Shaanxi, Peoples R China;

    Air Force Engn Univ, Xian 710051, Shaanxi, Peoples R China;

    Air Force Engn Univ, Xian 710051, Shaanxi, Peoples R China;

    Air Force Engn Univ, Xian 710051, Shaanxi, Peoples R China;

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