Fast Coupling Iterative Algorithm for Media Rough Surface with Multiple Targets Below

Authors

  • Lilan Lei School of Mathematics and Computer Science Yichun University, Yichun, 336000, China

DOI:

https://doi.org/10.13052/2023.ACES.J.380804

Keywords:

BMIA/CAG-CMG, dielectric properties, electromagnetic scattering characteristics, mutual coupling iteration algorithm

Abstract

This paper proposes a fast mutual coupling iteration algorithm for analyzing the composite electromagnetic scattering characteristics of a Gaussian rough surface with multiple targets below it. Firstly, an electromagnetic scattering model of Gaussian rough surface with multiple targets underneath is established. To improve the efficiency of electromagnetic scattering calculations, the (banded matrix iterative approach canonical grid - conjugate gradient method (BMIA/CAG-CMG) algorithm is used to calculate the surface scattering of the rough surface, while for the scattering of the targets, the traditional numerical algorithm moment of methods (MoM) is used for the calculation. Its main acceleration principle is to decompose the matrix into banded and Toeplitz matrices during the solution process, and then use fast Fourier transform (FFT) for fast solution based on their characteristics. By comparing the calculation results of this algorithm with those of the MoM algorithm, the correctness of this algorithm is verified. Several examples are studied, and the impact of different parameters on the surface current and composite scattering characteristics is discussed, which have important significance for deepening the understanding of scattering characteristics in complex electromagnetic environments.

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Author Biography

Lilan Lei, School of Mathematics and Computer Science Yichun University, Yichun, 336000, China

Lilan Lei was born in Jiangxi, China. She received the bachelor’s and master’s degrees from Jiangxi Normal University, Jiangxi, China, in 2002 and 2009, respectively. Her research interests include computer applications and computer communication.

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Published

2023-08-31

How to Cite

[1]
L. . Lei, “Fast Coupling Iterative Algorithm for Media Rough Surface with Multiple Targets Below”, ACES Journal, vol. 38, no. 08, pp. 575–586, Aug. 2023.