A geometrical optics model for skywave radiation from antennas in irregular terrain

Author

Burke, G.J.

Author_Institution

Lawrence Livermore Nat. Lab., CA, USA

fYear

1991

fDate

24-28 June 1991

Firstpage

1390

Abstract

A GO (geometrical optics) model for scattering by irregular terrain is described. GO is limited to propagation paths that do not graze the terrain surface since diffraction or surface waves are neglected: however, it represents a relatively simple approach and can be applied to three-dimensional terrain models. The GO model was tested for scattering from a two-dimensional Gaussian ridge to compare with results published by L.A. Berry (1967), who solved a Volterra integral equation for the field over the surface and then integrated to get the field above the ridge.<>

Keywords

antennas; geometrical optics; ionospheric electromagnetic wave propagation; radiowave propagation; EM wave scattering; HF communication link; Volterra integral equation; antennas; field; geometrical optics model; irregular terrain; propagation paths; radiowave propagation; skywave radiation; three-dimensional terrain models; two-dimensional Gaussian ridge; Antennas and propagation; Geometrical optics; Integral equations; Optical diffraction; Optical propagation; Optical scattering; Optical surface waves; Solid modeling; Surface waves; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1991. AP-S. Digest

Conference_Location

London, Ontario, Canada

Print_ISBN

0-7803-0144-7

Type

conf

DOI

10.1109/APS.1991.175109

Filename

175109