Analysis of the Attenuation Caused by the Influence of Orography in the Medium Wave Band

Author

De La Vega, David ; López, Susana ; Guerra, David ; Prieto, Gorka ; Vèlez, Manuel ; Angueira, Pablo

Author_Institution

Dept. of Electron. & Telecommun., Univ. of the Basque Country, Bilbao

fYear

2007

fDate

22-25 April 2007

Firstpage

344

Lastpage

347

Abstract

This paper presents attenuation values due to the influence of orography in the MW band, based on an analysis of data recorded in a measurement campaign. The decisive influence of the distance of the obstacle from the receiver is demonstrated, and this parameter has been considered in the analysis. Values for the range of the influence are indicated for different values of the height of a single obstacle. These attenuation values are greater than the ones assumed in classical methods, and coincide with measurement campaigns developed by DRM (digital radio mondiale) consortium members. Accuracy in calculating the attenuation due to the irregular terrain is necessary in planning the coverage of digital services, where it is necessary to provide adequate field strength in a high percentage of locations.

Keywords

HF radio propagation; digital radio; electromagnetic wave transmission; attenuation; digital radio mondiale consortium; medium wave band; orography; Accuracy; Acoustic propagation; Attenuation measurement; Bandwidth; Data analysis; Digital Radio Mondiale; Europe; Prediction methods; Radio broadcasting; Radio transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th

Conference_Location

Dublin

ISSN

1550-2252

Print_ISBN

1-4244-0266-2

Type

conf

DOI

10.1109/VETECS.2007.82

Filename

4212510