一致性绕射理论的等效边缘电磁流法在抛物线方程中的应用  

Uniform Theory of Diffraction Equivalent Edge Currents Method and Its Application in Parabolic Equation

作　　者：沈玮[1] 吴先良[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,安徽合肥230039

出　　处：《电子学报》2007年第3期563-566,共4页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60371041)

摘　　要：将抛物线算法应用于目标的电磁散射特性分析中.针对传统的抛物线算法在计算棱边散射体时误差较大这一问题,本文引入了一致性绕射理论对其进行修正.数值结果表明:与传统方法相比,该方法可以提高棱边散射体的计算精度.The parabolic equation （PE） method was applied to analyze the scattering characteristic of objects.To eliminate the obvious error resulted by the scattering analysis of scatterers with edges by traditional PE method, Uniform Theory of Diffraction was presented to solve the problem. Numerical results suggest that the method presented can improve the accuracy of computation for scatterers with edges.

关 键 词：雷达散射截面 抛物线方程 完全匹配层 等效边缘电磁流 

分 类 号：TN011[电子电信—物理电子学]