One major goal of the European Community Advanced Transport Telematics programme is 'to provide all 'actors' (car drives, pedestrians, public transport users, etc.) with user-oriented (attractive, user friendly, affordable) and reliable information systems. They must be open for additional Road Transport Informatics (RTI) applications and operating everywhere in Europe at anytime to improve efficiency and safety'. To fulfil these requirements, the ICAR Consortium has considered the possibility to extend the open area (roads) coverage of these radio frequency systems to confined areas (tunnels, parking). The system considered by the Consortium is the GSM (Global System for Mobile telecommunication) working into the 900 MHz frequency band. To achieve this extension, specific electronic and electromagnetic problems have to be solved. This paper consideres some system aspects. A frequency/time and a space domain analysis are performed on a prototype of optimised GSM leaky feeder.
Road transport informatics (RTI) telecommunication applications in confined areas - the ICAR concept
Anwendungen der telekommunikativen Straßentransportinformatik in ummauerten Bereichen: Das ICAR-Konzept
1993
8 Seiten, 6 Bilder, 8 Quellen
Aufsatz (Konferenz)
Englisch
British Library Conference Proceedings | 1993
|British Library Conference Proceedings | 1993
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