Scattering from Large-Scale Stratified Rough Surfaces using Improved BMIA/CAG

Linfeng He; Liang Lang; Qingxia Li; Wenchao Zheng

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Scattering from Large-Scale Stratified Rough Surfaces using Improved BMIA/CAG

机译：使用改进的BMIA / CAG从大型分层粗糙表面散射

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摘要

A numerical method is presented to analyze the scattering behavior of large-scale stratified rough surfaces. The method improves the banded matrix iterative approach / canonical grid (BMIA/CAG) by adopting some simple formulas to calculate the coupling interactions between different surfaces. Such treatment reduces the complexity of the method at expense of little accuracy when the roughness of surfaces can be ignored compared to the distance between surfaces, and also reduces the computation time by parallel implementation technique. Based on emissivity calculation, the one-dimensional method is proven to be effective for the analysis of some scattering properties. Then the proposed method is compared with the method of moments (MoM) by example of multilayered lunar regolith. Details of numerical results are given and discussed, which provide a guide in the application of the improved method.

机译：提出了一种数值方法来分析大尺度分层粗糙表面的散射行为。该方法通过采用一些简单的公式来计算不同表面之间的耦合作用，从而改进了带状矩阵迭代方法/规范网格（BMIA / CAG）。当与表面之间的距离相比可以忽略表面的粗糙度时，这样的处理降低了方法的复杂性，但精度较低，并且还通过并行实现技术减少了计算时间。基于发射率计算，一维方法被证明对某些散射特性的分析是有效的。然后以多层月球重石为例，将提出的方法与矩量法（MoM）进行了比较。给出并讨论了数值结果的细节，这为改进方法的应用提供了指导。

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来源
《Applied Computational Electromagnetics Society journal》 |2012年第4期|p.360-368|共9页
作者
Linfeng He; Liang Lang; Qingxia Li; Wenchao Zheng;
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作者单位

Science and Technology on Multi-Spectral Information Processing Laboratory Huazhong University of Science and Technology, Wuhan, 430074, China;

Science and Technology on Multi-Spectral Information Processing Laboratory Huazhong University of Science and Technology, Wuhan, 430074, China;

Science and Technology on Multi-Spectral Information Processing Laboratory Huazhong University of Science and Technology, Wuhan, 430074, China;

Science and Technology on Multi-Spectral Information Processing Laboratory Huazhong University of Science and Technology, Wuhan, 430074, China;

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原文格式 PDF
正文语种 eng
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关键词
banded matrix iterative approach / canonical grid method (BMIA/CAG); method of moments (MOM); remote sensing; rough surface scattering; stratified rough surfaces;

机译：带状矩阵迭代方法/规范网格方法（BMIA / CAG）;矩量法（MOM）;遥感;粗糙的表面散射;分层的粗糙表面;

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专利

1. Monte-Carlo simulations of large-scale problems of random rough surface scattering and applications to grazing incidence with the BMIA/canonical grid method [J] . Leung Tsang, Chan C.H. IEEE Transactions on Antennas and Propagation . 1995,第8期

机译：蒙特卡洛模拟随机粗糙表面散射的大规模问题及其在BMIA /规范网格方法中的应用
2. An improved FB/NSA algorithm for the computation of scattering from two-dimensional large-scale rough surfaces [J] . Torrungrueng D., Johnson JT. Journal of Electromagnetic Waves and Applications . 2001,第10期

机译：一种改进的FB / NSA算法，用于计算二维大尺度粗糙表面的散射
3. Parallel fast multiple method for electromagnetic scattering from one-dimensional large-scale twolayered rough surfaces for large angles of incidence [J] . Guo L., Wang A., Chai C. Microwaves, Antennas & Propagation, IET . 2011,第15期

机译：一维大型两层粗糙表面大入射角电磁散射的并行快速多重方法
4. The E-PILE+BMIA/CAG method for calculating the EM scattering from rough surface with buried object [C] . Ji Wei-jie, Tong Chuang-ming 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference . 2011

机译：E-PILE + BMIA / CAG方法用于计算带有掩埋物体的粗糙表面的EM散射
5. Studies of large-scale random rough surface scattering problems based on Monte Carlo simulations with efficient computational integral equation methods. [D] . Pak, Kyung Sik. 1996

机译：基于蒙特卡洛模拟和有效计算积分方程方法的大规模随机粗糙表面散射问题的研究。
6. Light Scattering from Rough Silver Surfaces: Modeling of Absorption Loss Measurements [O] . Matin Dehghani, Christin David 2021

机译：从粗糙的银色表面光散射：吸收损耗测量的建模
7. Seismo-acoustic rough interface scattering of surface-generated ambient noise in a stratified ocean [O] . Liu Jin-Yuan 1993

机译：在分层海洋中表面产生的环境噪声的地震声学粗糙界面散射
8. Monte-Carlo Simulations of Large-Scale Problems of Random Rough SurfaceScattering and Applications to Grazing Incidence with the BMIA/Canonical Grid Method [R] . Tsang, L., Chan, C. H., Pak, K., 1995

机译：随机粗糙面散射大尺度问题的monte-Carlo模拟及其与BmIa /标准网格法在放牧中的应用

Scattering from Large-Scale Stratified Rough Surfaces using Improved BMIA/CAG

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