Shooting and bouncing rays (SBR) is a numerical method based on geometric optics developed to compute the electromagnetic scattering from jet inlets and partially open cavity structures. This method is used to study the effects of shaping on the radar cross‐section (RCS) of cavities. Two cylindrical cavity structures are analysed: one with a uniform circular cross‐section, and the other with a non‐uniform cross‐section varying from a triangular shape to a circular shape. By bending the longitudinal axis of a cylindrical cavity, a significant reduction in RCS at near axial incidence can be achieved.
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Chou et al. (1988) studied this question.
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