On the universal behavior of scattering from a rough surface for small grazing angles

Author

Tatarskii, Valerian I. ; Charnotskii, Mikhail I.

Author_Institution

NOAA, Boulder, CO, USA

Volume

46

Issue

1

fYear

1998

fDate

1/1/1998 12:00:00 AM

Firstpage

67

Lastpage

72

Abstract

It is shown that for scattering from a plane of an average rough surface, the scattering cross section of the range of small grazing angles of the scattered wave demonstrates a universal behavior. If the angle of incidence is fixed (in general, it should not be small), the diffuse component of the scattering cross section for the Dirichlet problem is proportional to θ² where θ is the (small) angle of elevation and for the Neumann problem it does not depend on θ. For the backscattering case, these dependencies correspondingly become θ⁴ and θ⁰. The result is obtained from the structure of the equations that determine the scattering problem rather than the use of an approximation

Keywords

backscatter; electromagnetic wave scattering; Dirichlet problem; Neumann problem; backscattering; diffuse component; incidence angle; rough surface; scattered wave; scattering cross section; small grazing angles; universal behavior; Atmospheric waves; Backscatter; Boundary conditions; Electromagnetic scattering; Integral equations; Rough surfaces; Sea surface; Solids; Surface roughness; Surface waves;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.655452

Filename

655452