Wave scattering from a lossy dielectric rough surface using PBTG-BMIA/CAG and applications to passive remote sensing

Qin Li Qin Li,Guifu Zhang Guifu Zhang,Leung Tsang Leung Tsang,Chi Hou Chan Chi Hou Chan

doi:10.1109/igarss.1998.691506

Wave scattering from a lossy dielectric rough surface using PBTG-BMIA/CAG and applications to passive remote sensing

Qin Li Qin Li, Guifu Zhang Guifu Zhang + Show 2 more

https://doi.org/10.1109/igarss.1998.691506

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Publication Date: Jan 1, 1998

Citations: 1

Affiliation: University of Washington, City University of Hong Kong

#Physics-based Two-grid Method #Lossy Dielectric Surface + Show 8 more

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Abstract

Wave scattering from a lossy dielectric rough surface is studied. Based on the fact that Green's function of the air region is slowly varying compared to that in a lower medium and Green's function in a lossy medium is attenuative, a physics-based two-grid method (PBTG) was developed. To facilitate computation, the method is combined with the banded-matrix iterative approach/canonical grid (BMIA/CAG) method. Applying this method, bistatic scattering coefficients and emissivities are calculated. The results show good agreement in comparison with that of using a single dense grid.

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