![]() ![]() This is particularly important where regions of the scattering geometry in the shadow of GO rays have surface currents that create significant field contributions to a region’s observation points or angles. That is, any legitimate UTD ray path can be used to paint PO-like equivalent currents, not just the GO rays at the foundation of a UTD solution. However, a more general understanding SBR, which we distinguish as SBR+, allows the full array of well-established UTD techniques, such as edge diffraction and creeping wave rays, to be deployed to model interactions within the scatterer. SBR can be summarized as an efficient technique for extending PO to multiple bounces using GO ray tracing.Īn important limitation of traditional SBR is its exclusive reliance on GO as the mechanism for capturing interaction effects between different parts of the scatterer. The scattered field is determined by radiating the currents. In this presentation, SBR is understood to be a technique where geometrical optics (GO) rays are launched from a radiation source to a scattering object, and these rays are used to “paint” physical optics (PO) currents on the target. The shooting and bouncing rays (SBR) method extends back to the 1980s as an asymptotic technique for solving RCS and installed antenna problems on electrically large structures. ![]()
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