数字农科院2.0

A Note On Brewster Effect For Lossy Inhomogeneous Rough Surfaces

文献类型： 外文期刊

作者： Yang, Y; Chen, KS; Li, ZL

作者机构：

关键词： Rough Surfaces; Surface Roughness; Dielectrics; Surface Waves; Scattering; Sea Surface; Nonhomogeneous Media; Dielectric Profile; Inhomogeneous; Reflection; Rough Surface

期刊名称： IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING

ISSN： 0196-2892

年卷期： 2020 年 58 卷 9 期

页码：

收录情况： JCR（2021版） ; EI（2021版）

摘要： This article attempts to examine the Brewster effect of incoherent scattering from a lossy inhomogeneous rough surface with a vertical dielectric profile. Five typical dielectric profiles are selected for the purpose of illustration. In calculating the reflection coefficients, a transition model is used to convert the angle of incidence to local incidence, which accounts for the surface roughness. Numerical results show that the Brewster angle gradually moves to the large incident angle with an increase in the background dielectric constant and in the surface root-mean-squared (rms) height. The angular dependence of reflection coefficients, both the level and the trend, is slightly affected by the correlation length. The scattering strength is much more sensitive to the rms height than to the correlation length. The results could be useful in the retrieval of vertical soil moisture content when proper radar observation is available.

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