Multilevel tabulated interaction method applied to UHF propagation over irregular terrain

Author

Brennan, Conor ; Cullen, Peter J.

Author_Institution

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

Volume

47

Issue

10

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

1574

Lastpage

1578

Abstract

A multilevel tabulated interaction method (TIM) is described for application to the analysis of exceptionally large two-dimensional (2-D) UHF terrain propagation problems. While standard TIM schemes offer extremely rapid solutions to terrain propagation problems on a medium to large scale (~20 km), the computation times increase quadratically with problem size. For problems of extremely large size (~100 km), we show how the adoption of the multilevel scheme proves beneficial, reducing computation times and restoring the TIMs computational advantage. Numerical results are provided illustrating the concepts introduced

Keywords

UHF radio propagation; electric field integral equations; electromagnetic wave polarisation; 2D EFIE; 2D UHF terrain propagation problems; computation times reduction; electric field integral equation; horizontal polarization; irregular terrain; multilevel tabulated interaction method; problem size; radiowave propagation; Electromagnetic propagation; Helium; Integral equations; Large-scale systems; NIST; Solid modeling; Terrain factors; Two dimensional displays; UHF propagation; Wireless communication;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.805902

Filename

805902