现代雷达2026，Vol.48Issue(5)：102-110,9.DOI:10.16592/j.cnki.1004-7859.20241128001
基于压缩块方案与MLFMA结合的空间目标电磁散射计算方法
A Calculation Method of Electromagnetic Scattering of Space Targets Based on a Combination of Compression Block Scheme and MLFMA
逄博 1吴春君 1韦博 2高海云 1王磊 1朱文磊1
作者信息
- 1. 杭州电子科技大学通信工程学院,浙江 杭州 310018
- 2. 杭州电子科技大学通信工程学院,浙江 杭州 310018||浙江大学工程师学院,浙江 杭州 310015
- 折叠
摘要
Abstract
To meet the increasing demand for efficient computation of electromagnetic scattering characteristics of space targets,a high-efficiency methodology for electromagnetic scattering calculations that integrates the compressed block scheme(CBS)with the multi-level fast multipole algorithm(MLFMA)is presented in this paper.This approach effectively addresses the challenges of excessively large impedance matrix size,high computational complexity,and low iterative solution efficiency in calculating the electromagnetic characteristics of space targets.Specifically,it employs the octree chunking operation of MLFMA to naturally di-vide the far-field impedance matrix into multiple sparse matrix blocks,and then uses CBS to compress and store them,effectively accelerating the vector multiplication of sparse matrix while significantly reducing memory consumption.Furthermore,the storage volume is further compressed by sharing the source function index during the storage process.Experimental results obtained from models of spheres,cubes,amygdalae,and satellites indicate that the proposed method effectively improves computational effi-ciency while maintaining high accuracy,thereby rendering it suitable for the rapid and precise determination of the electromag-netic scattering properties of space targets with complex structures.关键词
电磁散射计算/矩量法/多层快速多极子算法/压缩块方案/雷达散射截面积Key words
electromagnetic scattering calculations/method of moments(MoM)/multi-level fast multipole algorithm(MLFMA)/compressed block scheme(CBS)/radar cross section(RCS)分类
数理科学引用本文复制引用
逄博,吴春君,韦博,高海云,王磊,朱文磊..基于压缩块方案与MLFMA结合的空间目标电磁散射计算方法[J].现代雷达,2026,48(5):102-110,9.
