A high speed adaptive methodology for calculating UHF propagation loss over terrain

Author

Brennan, Conor ; Cullen, Peter ; Rossi, Luca

Author_Institution

Dept. of Electr. Eng., Trinity Coll., Dublin, Ireland

Volume

2

fYear

1997

fDate

1-4 Sep 1997

Firstpage

629

Abstract

A fast new methodology for solving the matrix equation that arises from an integral equation description of UHF propagation over terrain is presented. The method combines the fast far field approximation with the Green´s function perturbation method to produce a fast solution technique with a strong physical basis. Results of numerical experiments are presented and compare favourably with both published measured data and slower more exact reference solutions. The effect of small scale surface roughness is also discussed

Keywords

Green´s function methods; UHF radio propagation; adaptive systems; approximation theory; electromagnetic field theory; electromagnetic wave scattering; integral equations; losses; matrix algebra; perturbation techniques; Green´s function perturbation method; UHF propagation loss; exact reference solutions; fast far field approximation; fast solution technique; high speed adaptive methodology; integral equation; matrix equation; measured data; numerical experiments; scattered EM fields; small scale surface roughness; terrain; Computational complexity; Electromagnetic measurements; Electromagnetic scattering; Integral equations; Optical scattering; Optical surface waves; Perturbation methods; Propagation losses; UHF measurements; UHF propagation;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on

Conference_Location

Helsinki

Print_ISBN

0-7803-3871-5

Type

conf

DOI

10.1109/PIMRC.1997.631108

Filename

631108