Title :
“Stochastic Theory of Edge Diffraction”: An Alternative Formulation
Author_Institution :
Inf. Eng. Dept., Univ. of Siena, Siena, Italy
Abstract :
An alternative formulation is presented for the derivation of the results in which allows to rigorously extend the validity range to any incidence/observation aspect provided that the standard deviation of the edge roughness sigma is not large compared to the wavelength lambda while the observation distance r is r Gt lambda . This was heuristically conjectured by Franceschetti, (IEEE Trans. Antennas Propag., vol. 56, no. 2, pp. 437-449, 2008) and supported by numerical examples, but without a rigorous proof.
Keywords :
electromagnetic wave diffraction; stochastic processes; edge diffraction; edge roughness; numerical examples; observation distance; stochastic theory; Geometrical optics; Optical scattering; Optical surface waves; Physical theory of diffraction; Reflection; Rough surfaces; Statistics; Stochastic processes; Surface roughness; Uncertainty; Ray optical methods; scattering from rough surfaces; uniform theory of diffraction (UTD);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2009.2024581
