Time-Domain Scattering Modelling of Two-Dimensional Cylinder Located on a Rough Surface
ZHANG Min1, LI Le-Wei2, LI Ling-Xia1, WU Zhen-Sen1
1School of Science, Xidian University, Box 270, Xi'an 7100712Department of Electrical and Computer Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119620
Time-Domain Scattering Modelling of Two-Dimensional Cylinder Located on a Rough Surface
ZHANG Min1;LI Le-Wei2;LI Ling-Xia1;WU Zhen-Sen1
1School of Science, Xidian University, Box 270, Xi'an 7100712Department of Electrical and Computer Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119620
摘要Numerical modelling on the transient electromagnetic scattering by a two-dimensional (2D) cylinder located on a time-evolving rough surface is presented by using time-domain integral equations. The proposed special choice of a tapered Gauss pulse incident wave removes the truncation error from the rough surface. Additionally, a two-level averaging technique is utilized to overcome the instability from the time marching procedure of solving integral equations. Excellent correspondences between the surface current distributions, as well as the far-zone fields, computed by the proposed method and that obtained by the traditional method of moments associated with the inverse discrete Fourier transformation scheme demonstrate the accuracy of the modelling.
Abstract：Numerical modelling on the transient electromagnetic scattering by a two-dimensional (2D) cylinder located on a time-evolving rough surface is presented by using time-domain integral equations. The proposed special choice of a tapered Gauss pulse incident wave removes the truncation error from the rough surface. Additionally, a two-level averaging technique is utilized to overcome the instability from the time marching procedure of solving integral equations. Excellent correspondences between the surface current distributions, as well as the far-zone fields, computed by the proposed method and that obtained by the traditional method of moments associated with the inverse discrete Fourier transformation scheme demonstrate the accuracy of the modelling.
ZHANG Min;LI Le-Wei;LI Ling-Xia;WU Zhen-Sen. Time-Domain Scattering Modelling of Two-Dimensional Cylinder Located on a Rough Surface[J]. 中国物理快报, 2007, 24(6): 1563-1566.
ZHANG Min, LI Le-Wei, LI Ling-Xia, WU Zhen-Sen. Time-Domain Scattering Modelling of Two-Dimensional Cylinder Located on a Rough Surface. Chin. Phys. Lett., 2007, 24(6): 1563-1566.
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2007, Vol. 24 
