Scattering of a plane wave by one-dimensional dielectric random rough surfaces—study with the curvilinear coordinate method |
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Authors: | C Baudier R Duss aux K S Edee G Granet |
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Institution: | C. Baudier ,R. Dussé,aux,K. S. Edee,G. Granet |
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Abstract: | We present a method giving the bi-static scattering coefficient of a one-dimensional dielectric random rough surface illuminated by a plane wave. The theory is based on Maxwell's equations written in a nonorthogonal coordinate system. For each medium, this method leads to an eigenvalue system. The scattered field is expanded as a linear combination of eigensolutions satisfying the outgoing wave condition. The boundary conditions allow the diffraction amplitudes to be determined. The Monte Carlo technique is applied and the bi-static scattering coefficient is estimated by averaging the scattering amplitudes over several realizations. The results of a Gaussian random process with a Gaussian roughness spectrum are compared to published experimental and numerical data. Comparisons are conclusive. |
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