粗糙土壤面及其上方目标的复合电磁散射研究

Investigation of the Composite Electromagnetic Scattering from Rough Soil Surface with the Target above It

一维指数型粗糙土壤表面采用Monte Carlo方法模拟产生,运用矩量法研究了一维指数型粗糙土壤表面及其上方矩形截面导体柱的复合电磁散射。通过数值计算得到了复合散射系数随散射角的变化曲线。讨论了土壤表面高度起伏均方根、土壤湿度、柱体中心高度、柱体倾角对复合散射系数的影响,得到了一维指数型粗糙土壤表面及其上方矩形截面导体柱的复合电磁散射特征。

One-dimensional exponential rough soil surface is simulated by the Monte Carlo method. The com- posite electromagnetic scattering of the one-dimensional exponential rough soil surface with vertical rectangular cross-section conductor column above it is studied using method of moment. The curves of the composite scattering coefficient changing with scattering angle are obtained by the numerical calculation. The influence of the root mean square of soil surface, the soil moisture, the height between the center of the column and the soil surface, the tilt angle of column, the frequency of incident wave is discussed, and the further the composite electromagnetic charac- teristics of 1 D exponential rough soil surface with vertical rectangular cross-section conductor column above it are obtained.