A terrain parabolic equation model for propagation in the troposphere

Author

Barrios, Amalia E.

Author_Institution

Div. of Res. & Dev., Test & Evaluation, Naval Command, Control & Ocean Surveillance Center, San Diego, CA, USA

Volume

42

Issue

1

fYear

1994

fDate

1/1/1994 12:00:00 AM

Firstpage

90

Lastpage

98

Abstract

A method to model tropospheric radiowave propagation over land in the presence of range-dependent refractivity is presented. The terrain parabolic equation model (TPEM), is based on the split-step Fourier algorithm to solve the parabolic wave equation, which has been shown to be numerically efficient. Comparisons between TPEM, other terrain models (SEKE, GTD, FDPEM), and experimental data show predominantly excellent agreement. TPEM is also compared to results from an experiment in the Arizona desert in which range-dependent refractive conditions were measured. Although horizontal polarization is used in the implementation of the model, vertical polarization is also discussed

Keywords

electromagnetic wave polarisation; electromagnetic wave refraction; fast Fourier transforms; radiowave propagation; refractive index; tropospheric electromagnetic wave propagation; wave equations; Arizona desert; TPEM; experimental data; horizontal polarization; land; parabolic wave equation; range-dependent refractivity; split-step Fourier algorithm; terrain model; terrain parabolic equation model; troposphere; tropospheric radiowave propagation; vertical polarization; Atmospheric modeling; Earth; Equations; Finite difference methods; Geometrical optics; Optical diffraction; Optical reflection; Propagation losses; Solid modeling; Terrestrial atmosphere;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.272306

Filename

272306