Scattering And Depolarization By Two Dimensional Random Rough Surfaces Of Finite Conductivity - Theory And Experiment

E Bahar; M A Fitzwater

doi:10.1117/12.945824

14 July 1988 Scattering And Depolarization By Two Dimensional Random Rough Surfaces Of Finite Conductivity - Theory And Experiment

E Bahar, M A Fitzwater

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Proceedings Volume 0927, Wave Propagation and Scattering in Varied Media; (1988) https://doi.org/10.1117/12.945824
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

To obtain the scattering cross sections for rough surfaces with different roughness scales a full wave approach (based on the complete expansion of the electromagnetic fields and the imposition of exact boundary conditions) has been used to convert Maxwell's equations into rigorous sets of generalized telegraphists' equations for the forward and back-ward scattered wave amplitudes. The full wave approach accounts for specular point scattering as well as diffuse scattering in a self-consistent unified manner. Thus in order to determine the like and cross polarized cross sections of rough surfaces it is not necessary to decompose the composite surface into surfaces with large and small roughness scales. The single scatter approximations of the rigorous full wave solutions indicate that the enhanced like and cross polarized backscatter is a first order effect. Furthermore, for normal incidence the full wave solutions for the bistatic like and cross polarized cross sections exhibit the observed fourfold symmetry about the backscatter direction.

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E Bahar and M A Fitzwater "Scattering And Depolarization By Two Dimensional Random Rough Surfaces Of Finite Conductivity - Theory And Experiment", Proc. SPIE 0927, Wave Propagation and Scattering in Varied Media, (14 July 1988); https://doi.org/10.1117/12.945824

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KEYWORDS

Scattering

Backscatter

Electromagnetic scattering

Interfaces

Polarization

Wave propagation

Electromagnetism

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