基于改进的抛物线方程方法求解棱边散射体  

Calculation of scatterers with edges with the improved parabolic equation

作　　者：李民权[1] 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：《合肥工业大学学报（自然科学版）》2007年第5期620-622,626,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(69971001);安徽省教育厅重点资助项目(kj2007A081)

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,引入了棱边绕射对其进行修正;计算结果表明,与传统方法相比,该方法可以有效地提高棱边散射体的计算精度。The parabolic equation （PE） method is applied to analyze scattering characteristics of objects. As obvious errors may occur in the calculations of scatterers with edges by the traditional PE method, edge diffraction is considered to improve the PE method. Numerical results suggest that the new method can improve the accuracy of computation for scatterers with edges.

关 键 词：抛物线方程 完全匹配层 棱边绕射 

分 类 号：O175.26[理学—数学]