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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 |
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| Cite this article: |
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ZHANG Min, LI Le-Wei, LI Ling-Xia et al 2007 Chin. Phys. Lett. 24 1563-1566 |
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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.
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| Keywords:
41.20.Jb
42.25.Dd
42.25.Fx
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Received: 12 January 2007
Published: 17 May 2007
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| PACS: |
41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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42.25.Dd
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(Wave propagation in random media)
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42.25.Fx
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(Diffraction and scattering)
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