ORGANIZATION OF RADIO COMMUNICATIONS IN TUNNELS

Authors

  • Boštjan Tavčar Ministrstvo za obrambo, Uprava RS za zaščito in reševanje, Ljubljana
  • Alenka Švab Tavčar Ministrstvo za notranje zadeve RS, Policija, Ljubljana

Abstract

The article describes problems of radio communications in tunnels. The basic features of the propagations of radio signals are described. The stress is on path-losses, multipath fading and co-channel interference. The use of direct radio communication with all traps is described. The system of tunnel radio is described at the end of the article.

References

Didascalu, D., 2000. Ray-Optical Wave Propagation Modelling in Arbitrarily Shaped Tunnels. ISSN: 0942- 2935.

ETR 300-3 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers’ guide Part 3: Direct Mode Operation (DMO).

Odsek za komunikacijske sisteme, Institut »Jožef Stefan«, Laboratorij za telekomunikacije, Fakulteta za elektrotehniko v Ljubljani, 2006. Končno poročilo o delu na projektu TETRA MORS. Interni dokument.

Parsons, J. D., 1992–2000. The Mobile Radio Propagation Channel. ISBN 0-471-98857-X, 210–211.

Seybold, J. S., 2005. Introduction to RF propagatoions. ISBN-13 978-0-471-65596-1, ISBN-10 0-471- 65596-1, 208–217.

SkyLine, 2002. Meritve radijskega signala v predoru Jasovnik.

Tavčar, B., 2007. Načrtovanje radijskih zvez na področju varstva pred naravnimi in drugimi nesrečami. Seminar »Radiokomunikacije 2007«.

Tavčar, B., Podberšič, M., Švab Tavčar, A., 2006. Gradniki telekomunikacijskih sistemov 1. COBIS.SI ID:512150125, 218–238. 9. Wikipedia, Rice distribution, http://en.wikipedia.org/ wiki/Rician_distribution.

Published

19-01-2024

Issue

Section

Pripravljenost na nesreče