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首页> 美国政府科技报告 >Bistatic Incoherent Scattering Cross Sections for Dimensional Random Rough Surfaces of Finite Conductivity
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Bistatic Incoherent Scattering Cross Sections for Dimensional Random Rough Surfaces of Finite Conductivity

机译：有限电导率尺寸随机粗糙面的双基不相干散射截面

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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 backward 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 the 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 are first order effects. 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. Reprints. (jhd)

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