ITD formulation for corner diffraction

摘要

A uniform diffraction coefficient is presented for the scattering in the near zone by a corner at the interconnection between two straight edges when it is illuminated by a plane wave. The solution is obtained by applying the incremental theory of diffraction (ITD). The high-frequency expressions provide the desired continuity of the total scattered field at those aspects where the leading ray-field contributions experience a jump discontinuity.