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首页> 外文期刊>IEEE Transactions on Geoscience and Remote Sensing. >Fast and accurate algorithm for the short-pulse electromagnetic scattering from conducting circular plates buried inside a lossy dispersive half-space
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Fast and accurate algorithm for the short-pulse electromagnetic scattering from conducting circular plates buried inside a lossy dispersive half-space

机译：快速而精确的算法，用于掩埋在有损色散半空间内的导电圆板的短脉冲电磁散射

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摘要

The method of moments in the Hankel transform domain is applied to the determination of the fields scattered by a conducting circular plate buried in a lossy dispersive half-space when the plate is illuminated by a plane wave. The scattered fields obtained in the frequency domain are used to model the time-domain short-pulse scattering via the inverse fast Fourier transform. The authors show that the choice of adequate basis functions in the approximation of the current density induced on the plate makes it possible to obtain very accurate results for the scattered fields while using low computer memory requirements and short CPU times. This implies that the algorithm developed for the particular problem treated in this paper provides a good benchmark for the validation of any other numerical algorithms dealing with the analysis of the scattering from buried conducting objects with more complex geometry.
机译：Hankel变换域中的矩量法用于确定由平面波照射时埋在有损色散半空间中的导电圆形板散射的场。在频域中获得的散射场用于通过快速傅里叶逆变换对时域短脉冲散射进行建模。作者表明，在近似的板上感应电流密度的基础上选择适当的基函数，可以在使用较低的计算机内存要求和较短的CPU时间的情况下获得非常精确的散射场结果。这意味着为本文中处理的特定问题开发的算法为验证处理具有更复杂几何形状的地下导电物体的散射的任何其他数值算法的验证提供了良好的基准。

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