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Discussion on multiple electromagnetic strategies for surface with different scale of roughness combined with different environmental factors

机译:不同粗糙度不同粗糙度的多种电磁策略的探讨与不同的环境因素相结合

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Some computational electromagnetic strategies for surface with different scale of roughness combined with different physical or environmental factors are discussed in this presentation. For the relatively small scale roughness surface electromagnetic problem, the Small Perturbation Method and its higher order computational methods are compared. For the relative big scale roughness surface, the Kirchhoff Approximation and its higher order or modified method are listed and discussed. For the surface with both small and big scale roughness, due to the limitation of small argument expansion and tangential plane approximation, either the Small Perturbation Method and its higher order solving scheme or the Kirchhoff Approximation and its higher order or modified substitute will be invalid, the Two Scale Method that conquers the disadvantage of the above-mentioned schemes should be adopted, and its modified strategy will further improve the precision in the big angle region. Besides, some physical or environmental factors, such as the heat (temperature), moisture, wind, etc., that affect the electromagnetic characteristics of natural rough surface are also discussed. These studies will make sense to many fields, especially, the electromagnetics, remote sensing, optics, oceanography, radar surveillance, material science, etc.
机译:在本介绍中讨论了具有不同粗糙度规模的表面的一些计算电磁策略。对于相对小的粗糙度表面电磁问题,比较了小的扰动方法及其高阶计算方法。对于相对大规模粗糙度表面,列出并讨论了Kirchhoff近似及其高阶或修改方法。对于表面具有小而大规模粗糙度的表面,由于小的参数扩展和切向平面近似的限制,小扰动方法及其更高阶的求解方案或kirchhoff近似及其更高阶或修改的替代物是无效的,应采用两个规模方法,征收上述方案的缺点,其修改的策略将进一步提高大角度区域的精度。此外,还讨论了影响自然粗糙表面的电磁特性的一些物理或环境因素,例如热(温度),水分,风等。这些研究将对许多领域有意义,特别是电磁,遥感,光学,海洋学,雷达监控,材料科学等。

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