Time-Reversal UWB positioning beacon for railway application

Fall, Bouna; Elbahhar, Fouzia; Heddebaut, Marc; Rivenq, Atika

doi:10.1109/ipin.2012.6418884

Cited by 7 publications

(3 citation statements)

References 10 publications

(2 reference statements)

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“…As demonstrated in [14] for residential indoor environments case, the predicted delay spread in the tunnel environment for the SISO-TR case is not reduced. However, SISO-TR results in a highly peaked main lobe signal above the temporal side lobes.…”

Section: Contribution Of Tr-uwb System In Terms Of Communication Perfmentioning

confidence: 82%

“…Concerning the UWB technique, previous investigations have raised major issues, such as the complexity of the signal processing at the reception [11,12]. Therefore, UWB has been associated with TR [13,14], especially in multi-users communication systems, in order to solve part of these problems and to report some of the noted complexity at the transmitter level.…”

Section: Ultra-wideband Radio Techniquementioning

confidence: 99%

“…This information is then introduced as pre-filtering data in the different balise transmitters. Therefore, focusing is obtained in the required position, along the track, potentially improving the absolute localization process [14]. Moreover, using a single balise, focusing can be achieved successively toward different tracks, therefore, addressing different trains and delivering specific data to each train.…”

Section: Time Reversalmentioning

confidence: 99%

See 2 more Smart Citations

Advanced Train Positioning/Communication System

Elbahhar¹,

Heddebaut²

2018

Modern Railway Engineering

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In the past, in order to ensure train positioning as well as ground-to-train information exchange, railways have adopted various technologies. Over time, each new generation of equipment enriched the global information exchange but, as a consequence, necessitated higher data rate transfers. For the positioning functionality, the existing localisation systems are still limited, since most of them require an infrastructure installation with constraints such as laying equipment between the rails or having high database maintenance requirements and computational costs. Moreover, some of them accumulate errors (odometers and inertial sensors) or offer limited coverage in shadowed areas (GNSS, etc.). Currently, in railway applications, a widely used localization system is based on proprioceptive sensors embarked in the train. This on-board system is coupled to the use of balises located at ground between the rails. These balises are kilometre markers. They are used to compensate for the drift of the localization information computed using the proprioceptive sensors alone, when the train moves. The balises provide absolute localization information whenever the train passes over them. They can also provide spot communication during the short period of time when trains are passing over them. In the first part of this chapter, techniques for achieving train positioning and data exchanges between trains and infrastructure are introduced. In the second part, a new balise is proposed. Particular attention is paid to the contribution of this new solution in terms of localization error and communication performances.

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Section: Contribution Of Tr-uwb System In Terms Of Communication Perfmentioning

confidence: 82%