Sensitivity Analysis of Electromagnetic Scattering from Dielectric Targets with Polynomial Chaos Expansion and Method of Moments  

作　　者：Yujing Ma Zhongwang Wang Jieyuan Zhang Ruijin Huo Xiaohui Yuan 

机构地区：[1]College of Architecture and Civil Engineering,Xinyang Normal University,Xinyang,464000,China [2]Henan International Joint Laboratory of Structural Mechanics and Computational Simulation,College of Architecture and Civil Engineering,Huanghuai University,Zhumadian,463000,China [3]Academy of Military Sciences,Beijing,100091,China [4]Henan New Environmentally-Friendly Civil Engineering Materials Engineering Research Center,Xinyang Normal University,Xinyang,464000,China

出　　处：《Computer Modeling in Engineering & Sciences》2024年第8期2079-2102,共24页工程与科学中的计算机建模（英文）

基　　金：supported by the Young Scientists Fund of the National Natural Science Foundation of China(No.62102444);a Major Research Project in Higher Education Institutions in Henan Province(No.23A560015).

摘　　要：In this paper,an adaptive polynomial chaos expansion method(PCE)based on the method of moments(MoM)is proposed to construct surrogate models for electromagnetic scattering and further sensitivity analysis.The MoM is applied to accurately solve the electric field integral equation(EFIE)of electromagnetic scattering from homogeneous dielectric targets.Within the bistatic radar cross section(RCS)as the research object,the adaptive PCE algorithm is devoted to selecting the appropriate order to construct the multivariate surrogate model.The corresponding sensitivity results are given by the further derivative operation,which is compared with those of the finite difference method(FDM).Several examples are provided to demonstrate the effectiveness of the proposed algorithm for sensitivity analysis of electromagnetic scattering from homogeneous dielectric targets.

关 键 词：Adaptive polynomial chaos expansion method method of moments radar cross section electromagnetic scattering 

分 类 号：O17[理学—数学]