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2019-02-10

Compressed Sensing for Fast Electromagnetic Scattering Analysis of Complex Linear Structures

By Xuehua Ma, Ming Sheng Chen, Jinhua Hu, Meng Kong, Zhi-Xiang Huang, and Xian-Liang Wu
Progress In Electromagnetics Research M, Vol. 78, 155-163, 2019
doi:10.2528/PIERM18111304

Abstract

When method of moments (MOM) is applied to calculate electromagnetic scattering problems of the linear structures, traditional basis functions such as RWG functions are unable to satisfy the requirements of numerical discretization, so linear basis functions are constructed to discrete line structures, To avoid direct calculation of dense impedance matrix equation, compressed sensing (CS) in conjugation with appropriate transformation is introduced. Firstly, the impedance matrix equation is operated to obtain an alternative equation in transform domain. Secondly, CS is used to form an undetermined equation to be solved, under the theoretical framework of CS, and the underdetermined equation can be solved by reconstruct algorithm ​but not iterative approach. Finally, numerical simulations of single wound axial mode helical antenna and four element linear antennas array are discussed to demonstrate the efficiency and accuracy of the proposed method.

Citation


Xuehua Ma, Ming Sheng Chen, Jinhua Hu, Meng Kong, Zhi-Xiang Huang, and Xian-Liang Wu, "Compressed Sensing for Fast Electromagnetic Scattering Analysis of Complex Linear Structures," Progress In Electromagnetics Research M, Vol. 78, 155-163, 2019.
doi:10.2528/PIERM18111304
http://www.jpier.org/PIERM/pier.php?paper=18111304

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