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Li J.,Xidian University | Guo L.,Xidian University | He Q.,Xidian University | Wu Z.,Xidian University | Wang X.,The State Key Laboratory for Electromagnetic Scattering
Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | Year: 2012

An approach to studying composite electromagnetic (EM) scattering from the 2-D conducting rough surface and half-buried 3-D conducting target is proposed from geometry modeling to radar cross section (RCS) calculation. A two dimensional rough surface is simulated using the spectral method, which is then converted into a continuous curved surface through inverse engineering. The target model and rough surface model are combined together into a very accurate composite model, after which the surface mesh is generated with the information on the incidence frequency. Then the physical optics method (PO) and multi-level fast multiple algorithm (MLFMA) are respectively employed to study the scattering problem. The results of the single rough surface and the combinative model are given and compared. Source

Wang X.,Xidian University | Wu Z.,Xidian University | Zhang Y.,The State Key Laboratory for Electromagnetic Scattering | Yue H.,The State Key Laboratory for Electromagnetic Scattering | Liang Z.,The State Key Laboratory for Electromagnetic Scattering
Dianbo Kexue Xuebao/Chinese Journal of Radio Science | Year: 2013

A series of backward scattering measurements simulating rough sea surface were conducted over a wave pool. The rough water simulated a one-dimensional Pierson-Moskowitz surface. The scattering factor were analyzed with incident angle and frequency. The compiled data represent more fluctuant and complicated when the rough sea surface were illuminated by narrow beam width horns in near field. Copyright ©2013 by Editorial Department of Chinese Journal of Radio Science. Source

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