Abstract

The expressions for the spherical wave impedance obtained in Part I are simplified, using asymptotic expansions for high-frequency scattering on small-scale irregularities. The limiting cases are analyzed both of the spherical wave impedance without account of ∼η0σ2 perturbations (η0 is the non-perturbed impedance and σ2 the mean-souare heights of the irregularities), and of plane waves scattered by a statistically rough plane.

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