PE算法伪微分算子的多种近似处理对电磁散射计算的影响研究

Influence of multiform approximation of pseudo-differential operator of PE method on electromagnetic scattering computation

文章对抛物线方程(Parabolic Equation,简称PE)算法的伪微分算子的多种逼近形式进行了深入的分析研究,探讨了多种经过近似处理的抛物线方程算法的特点,并将多种PE算法应用于电大尺寸目标的电磁散射特性的分析中。关于理想导体柱电磁散射的算例表明,各种经过近似处理的抛物线方程算法具有各自的特点和适用范围。

The multiform approximation of pseudo-differential operator of parabolic equation （PE） method and the characteristics of PE method after the approximation are analyzed. Multiform PE methods are applied to analyzing the scattering characteristics of electrically large objects. The numer- ical results conducted on the scattering from perfectly conducting cylinder demonstrate that each of multiform PE methods after the approximation has special characteristics and annlleatinn ~r-nn~