Electromagnetic scattering from an inhomogeneous object by ray tracing

1992 ◽  
Vol 40 (5) ◽  
pp. 517-525 ◽  
Author(s):  
H. Kim ◽  
H. Ling
Keyword(s):  
Ray Tracing ◽  
Electromagnetic Scattering ◽  
Inhomogeneous Object

scholarly journals An Efficient Hybrid Method for 3D Scattering from Inhomogeneous Object Buried beneath a Dielectric Randomly Rough Surface

2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Hong-jie He ◽  
Li-xin Guo ◽  
Wei Liu
Keyword(s):  
Rough Surface ◽  
Hybrid Method ◽  
Electromagnetic Scattering ◽  
Three Dimensional ◽  
Boundary Integral ◽  
Boundary Integral Method ◽  
Magnetic Current ◽  
Inhomogeneous Object ◽  
Buried Object ◽  
Current Densities

An efficient iterative analytical-numerical method is proposed for three-dimensional (3D) electromagnetic scattering from an inhomogeneous object buried beneath a two-dimensional (2D) randomly dielectric rough surface. In the hybrid method, the electric and magnetic currents on the dielectric rough surface are obtained by current-based Kirchhoff approximation (KA), while the scattering from the inhomogeneous object is rigorously studied by finite element method (FEM) combined with the boundary integral method (BIM). The multiple interactions between the buried object and rough surface are taken into account by updating the electric and magnetic current densities on them. Several numerical simulations are considered to demonstrate the algorithm’s ability to deal with the scattering from the inhomogeneous target buried beneath a dielectric rough surface, and the effectiveness of our proposed method is also illustrated.

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