分数布朗表面的电磁散射

Scattering of electromagnetic waves from the fractional Brownian surface

讨论了理想导电的一维分数布朗表面的电磁散射问题，给出了散射系数均值和协方差的基尔霍夫解．通过数值计算得出散射能量的角分布图，分析了它们与分形维数和表面起伏的关系．

The problem of scattering of electromagnetic waves from the 1 d perfectly conducting surface modeled by the fractional Brownian motion function is discussed. The mean value of the scattering coefficient and its covariance are found under the condition of Kirchhoff approximation. Finally the relation between the angular distribution of scattering enery and surface irregularities, including fracted dimension and surface stardard deviation, is obtained by numerical computation.