scholarly journals DIRECT APPLICATION OF EXCITATION MATRIX AS SPARSE TRANSFORM FOR ANALYSIS OF WIDE ANGLE EM SCATTERING PROBLEMS BY COMPRESSIVE SENSING

2017 ◽  
Vol 65 ◽  
pp. 131-137 ◽  
Author(s):  
Xin-Yuan Cao ◽  
Ming Sheng Chen ◽  
Meng Kong ◽  
Liang Zhang ◽  
Xian-Liang Wu ◽  
...  
Keyword(s):  
Compressive Sensing ◽  
Direct Application ◽  
Wide Angle ◽  
Em Scattering ◽  
Scattering Problems

scholarly journals Application of Two-Dimensional Compressive Sensing to Wavelet Method of Moments for Fast Analysis of Wide-Angle Electromagnetic Scattering Problems

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Yi Liu ◽  
Qi Qi ◽  
Xinyuan Cao ◽  
Mingsheng Chen ◽  
Guoqing Deng ◽  
...  
Keyword(s):  
Compressive Sensing ◽  
Method Of Moments ◽  
Electromagnetic Scattering ◽  
Wide Angle ◽  
Two Dimensional ◽  
Induced Current ◽  
Linear Superposition ◽  
Scattering Problems ◽  
Wavelet Method ◽  
Right Hand

To efficiently solve the electromagnetic scattering problems over a wide incident angle, a novel scheme by introducing the two-dimensional compressive sensing theory into the wavelet method of moments is proposed. In this scheme, a linear system of equations with multiple right-hand sides in wavelet domain is formed firstly, and one side of the bilateral sparse transform to the induced current matrix is simultaneously accomplished and then the bilateral measurement of the induced current matrix is operated by the linear superposition of the right-hand side vectors a few times and the extraction of rows from the impedance matrix. Finally, after completing the other side of the bilateral sparse transform, the wide-angle problems can be solved rapidly by two times of recovery algorithm with prior knowledge. The basic principle is elaborated in detail, and the effectiveness is demonstrated by numerical experiments.

Method of Moments Based on Prior Knowledge for Solving Wide Angle EM Scattering Problems

2014 ◽  
Vol 31 (11) ◽  
pp. 118401 ◽  
Author(s):  
Xin-Yuan Cao ◽  
Ming-Sheng Chen ◽  
Meng Kong ◽  
Liang Zhang ◽  
Xian-Liang Wu
Keyword(s):  
Prior Knowledge ◽  
Method Of Moments ◽  
Wide Angle ◽  
Em Scattering ◽  
Scattering Problems

Compressive Sensing for Fast Analysis of Wide-Angle Monostatic Scattering Problems

2011 ◽  
Vol 10 ◽  
pp. 1243-1246 ◽  
Author(s):  
Ming Sheng Chen ◽  
Fa Lin Liu ◽  
Hong Mei Du ◽  
Xian Liang Wu
Keyword(s):  
Compressive Sensing ◽  
Wide Angle ◽  
Scattering Problems ◽  
Fast Analysis

Development of CEM in Relation to Subsurface Electromagnetic Scattering

2012 ◽  
Vol 588-589 ◽  
pp. 2166-2170
Author(s):  
Ajaz Amna ◽  
Jia Dong Xu ◽  
Abdul Mueed
Keyword(s):  
Design Process ◽  
Electromagnetic Scattering ◽  
Problem Area ◽  
Subsurface Scattering ◽  
Em Scattering ◽  
Scattering Problems ◽  
Analysis And Design ◽  
Modeling Analysis ◽  
Terrestrial Environments ◽  
Indispensable Tool

Computational Electromagnetic (CEM) techniques have become an indispensable tool in efficient EM modeling, analysis and design process. EM subsurface scattering is a broad field of research with varying degree of complexity. Due level of the obscurity involved in the subsurface scattering investigation, it is therefore considered imperative to explore this problem area of EM for better insight through CEM-based study and models. In this paper, frequency domain CEM techniques are studied which have been tested to provide solution for subsurface scattering problems in terrestrial environments. The development of CEM methods for comparatively more complex problems of scattering from embedded non-metallic inhomogeneity in lossy, rough and layered media remains the focus of this article. The objective here is to provide an overview of CEM development by selecting few examples from the wide area of subsurface EM scattering.

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