基于矩量法的非高斯分层粗糙面电磁散射研究

Study on the Composite Electromagnetic Scattering from Alpha-stable Distribution Surface with Above Target

为了求解非高斯分层粗糙面的电磁散射问题,提出利用矩量法解决该问题.采用空间域合成法生成Alpha-stable分布的随机粗糙面,数值计算了在锥形入射波入射下散射系数随散射角的变化关系,分析了稳定性系数、归一化尺度参数、互相关长度、入射波频率、粗糙面下层介电常数、粗糙面间距对散射系数的影响.

The method of moment is used to solve the electromagnetic scattering problem about the non-Gaussianlayered rough surface. The spatial domain building method is used to generate rough surface of Alpha-stabledistribution. The varying relationship of scattering coefficients with scattering angles is numerically calculated,andthe influence of the stability coefficient,normalized scale parameter,cross-correlation length,the incident wavefrequency,the dielectric constant of medium under the rough surface,the rough surface spacing on the scatteringcoefficients are analyzed.