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首页> 外文期刊>IEEE Transactions on Geoscience and Remote Sensing >Scattering from a metallic object embedded near the randomly rough surface of a lossy dielectric
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Scattering from a metallic object embedded near the randomly rough surface of a lossy dielectric

机译：从嵌入有损电介质的随机粗糙表面附近的金属物体散射

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摘要

Two-dimensional electromagnetic scattering from a perfectly conducting target embedded near the randomly rough surface of an isotropic lossy dielectric is investigated. The randomly rough surface is illuminated by a finite width beam from an antenna in the free space above the surface, with off-normal incidence. Standard integral equation methods are applied and include all subsurface interactions between the object and rough surface. For a chosen embedded target, Monte Carlo simulations are performed for a selection of ensembles of rough surface types intended to be suggestive of natural ground. Far field scattering coefficient distributions and corresponding synthetic images suggest when the buried object should be discernible. Sensitivities are explored in terms of surface type, polarization of the incident field, depth and orientation of target, soil characteristics, incidence angle, and beamwidth. Many of the scattering features identified should also apply in 3D.
机译：研究了来自各向同性有损电介质随机粗糙表面附近嵌入的完美导电目标的二维电磁散射。随机粗糙的表面被表面上方自由空间中来自天线的有限宽度的光束照亮，入射角不垂直。应用标准积分方程方法，该方法包括对象与粗糙表面之间的所有地下相互作用。对于选定的嵌入式目标，执行蒙特卡罗模拟以选择旨在暗示自然地面的粗糙表面类型的合奏。远场散射系数分布和相应的合成图像建议何时应该辨别掩埋物体。在表面类型，入射场的极化，目标的深度和方向，土壤特性，入射角和束宽方面探讨了敏感性。确定的许多散射特征也应适用于3D。

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