宽带宽角抛物线方程在旋转对称体散射特性分析中的应用  

Application of broadband wide-angle PE method in the analysis of scattering characteristics of BoRs

作　　者：胡帅帅 许唐红[1] 詹珍贤[1] Hu Shuaishuai;Xu Tanghong;Zhan Zhenxian(NO.38 Research Institude of CETC,Hefei Anhui,230088)

机构地区：[1]中国电子科技集团第三十八研究所

出　　处：《电子测试》2019年第19期46-48,共3页Electronic Test

摘　　要：结合旋转对称体(BoR)周围空间中电磁场量特殊性的抛物线方程方法(PE)可以快速求解旋转对称体的轴向散射特性,本文在此基础上将时域抛物线方程算法的伪微分算子采用高阶的泰勒级数展开,差分求解得到了用于快速分析旋转对称体散射特性的宽带宽角抛物线方程方法(宽角TD-BoR-PE)。关于理想导体圆台电磁散射的算例表明,相较于普通的抛物线方法与窄角BoR-PE,宽角TD-BoR-PE在消耗极少计算资源的同时轴向角精度更高。According to the PE method which is specific to the field around the bodies of revolution(BoRs),the axial scattering characteristics of BoRs can be quickly analyzed,and the pseudo differential operator of the BoRs in the time domain is developed by using the high order Taylor series.In this paper,a wide-angle PE method is obtained for fast analysis of the scattering characteristics of BoRs.The example of electromagnetic scattering from a circular platform with ideal conductor shows that this method has a higher accuracy at the same time as the calculation resource.

关 键 词：抛物线方程 旋转对称体 伪微分算子 高阶泰勒级数 

分 类 号：G63[文化科学—教育学]