Marc Heddebaut

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Applications of GNSS (Global Navigation Satellite System) in land transportation systems are already extensively deployed and will certainly continue to grow especially in the framework of Intelligent Transport Systems. However, one of the best-known drawbacks of such a system is the lack of satellite visibility in dense urban areas as well as in some(More)
For several years road vehicle autonomous cruise control (ACC) systems as well as anti-collision radar have been developed. Several manufacturers currently sell this equipment. The current generation of ACC sensors only track the first preceding vehicle to deduce its speed and position. These data are then used to compute, manage and optimize a safety(More)
In guided urban automated transportation systems, the maintenance of a high-quality broadband train-to-wayside communication at all locations along the track poses a major problem. Several techniques are currently used. However, to achieve sufficient rates, a communication frequency range of 2–6 GHz is widely in use. At these frequencies, the natural(More)
Recently, new standards have emerged in the telecommunication industry, which provide an open global specification that enables mobile devices to access and interact with information and services instantly. These mobile devices are, for example, laptops and personal digital assistants. These emerging standards, generically called wireless "x" area networks(More)
Every year, more than 400 people are killed in over 1,200 accidents at road-rail level crossings in the European Union. Together with tunnels and specific road black spots, level crossings have been identified as being a particular weak point in road infrastructure, seriously jeopardizing road safety. In the case of railway transport, level crossings can(More)
In the coming years, it is expected that long and short range road vehicle radars (LRR, SRR) will all operate at millimeter wave. In several regions of the world, a one GHz bandwidth was selected between 76 and 77 GHz for LRR. To obtain a very high distance resolution for applications like brakeassist and pre-crash, SRR need an even larger bandwidth. Hence,(More)
This paper reports an evaluation of UWB radio technology and Time-Reversal (TR) technique in tunnel environments for train-to-wayside communication. UWB technology has the potential to offer simultaneous ground-totrain communication, train location and obstacle detection in front of the trains. Time-Reversal channel pre-filtering facilitates signal(More)
For a few years, autonomous intelligent cruise control (AICC) systems as well as anticollision radars have been developed and are currently sold by manufacturers [Grac 1999]. These systems are working at microwave frequencies. As an example, CEPT (European Post and Telecommunication Conference) has allocated frequency bands at 5.8 GHz for dedicated(More)
The paper deals with the PANsafer project which aims at improving safety at Level Crossings. This project integrates several tasks; First a fine statistical analysis is carried out using accidents/incidents data basis as well as several other sources. At the same time we lead a human behaviour study at LX area in order to determine potential risky(More)