Iterative physical optics method based on efficient occlusion judgment with bounding volume hierarchy technology
作者机构：Key Laboratory for Information Science of Electromagnetic Waves(MoE)School of Information Science and TechnologyFudan UniversityShanghai200433China School of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu611731China
出 版 物：《Journal of Electronic Science and Technology》 (电子科技学刊（英文版）)
年 卷 期：2024年第22卷第1期
页 面：1-12页
核心收录：
基 金：the National Natural Science Foundation of China under Grants No.62231021 and No.92373201
主 题：Bounding volume hierarchy Cavity scattering Iterative physical optics(IPO)
摘 要：This paper builds a binary tree for the target based on the bounding volume hierarchy technology,thereby achieving strict acceleration of the shadow judgment process and reducing the computational complexity from the original O(N^(3))to O(N^(2)logN).Numerical results show that the proposed method is more efficient than the traditional *** is verified in multiple examples that the proposed method can complete the convergence of the ***,the proposed method avoids the error of judging the lit-shadow relationship based on the normal vector,which is beneficial to current iteration and *** with the brute force method,the current method can improve the simulation efficiency by 2 orders of *** proposed method is more suitable for scattering problems in electrically large cavities and complex scenarios.
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