The problem of a Vehicle Positioning System (VPS) is adressed. A specifically developed approach based on the cause-and-effect principle defines a closed-loop policy determining the lane level location of a sensor equipped vehicle moving within arbitrary road networks. After exploration of processed data provided by a smart camera and a laser detec...
Mon année d'apprentissage au sein du laboratoire EMGCU (Expérimentation et modélisation pour le génie civil et urbain) a été ma première expérience professionnelle dans le domaine scientifique. Encadré par Véronique Bouteiller, j'ai participé à un projet traitant la durabilité et la corrosion des bétons armés (Dur&Cor), né en 2014. Plusieurs corps ...
Zero velocity update is a common and efficient approach to bound the accumulated error growth for footmounted inertial navigation system. Thus a robust zero velocity detector (ZVD) for all kinds of locomotion is needed for high accuracy pedestrian navigation systems. In this paper, we investigate twomachine learning-basedZVDs: Histogrambased Gradie...
This article provides an overview of the use of inertial and visual sensors and discusses their prospects in the Arctic navigation of autonomous vehicles. We also examine the fusion algorithms used thus far for integrating vehicle localization measurements as well as the map-matching (MM) algorithms relating position coordinates with road infrastru...
Global Navigation Satellite Systems (GNSS) have been used in various monitoring applications for the past two decades, as one of the very few options to provide absolute positions in a global reference frame. However, high performance GNSS stations are expensive, and sometimes may be impractical because of their size, power consumption or software ...
The present study investigated the strain response of a distributed optical fiber sensor (DOFS) sealed in a groove at the surface of a concrete structure using a polymer adhesive and aimed to identify optimal conditions for crack monitoring. A finite element model (FEM) was first proposed to describe the strain transfer process between the host str...
L'affouillement est un risque hydraulique menaçant la stabilité des ponts dans les zones fluviales et côtières. Par conséquent, le développement de techniques de surveillance permanentes et en temps réel est crucial. Avancées récentes dans les mesures de déformation à l'aide de capteurs à fibres optiques offrent de nouvelles opportunités pour la su...
Zero velocity update is a common and efficient approach to bound the accumulated error growth for footmounted inertial navigation system. Thus a robust zero velocity detector (ZVD) for all kinds of locomotion is needed for high accuracy pedestrian navigation systems. In this paper, we investigate twomachine learning-basedZVDs: Histogrambased Gradie...
La surveillance des structures de génie civil constitue un enjeu majeur et fait encore l'objet de nombreuses recherches. En particulier, les problématiques de coût, de durabilité des capteurs et de fiabilité des mesures restent des aspects fondamentaux à prendre en compte pour toute nouvelle solution d'instrumentation. Les capteurs à fibre optique ...
Pedestrian navigation with hand-held sensors is still particularly complex. Pedestrian Dead Reckoning method is generally used but the estimation of the walking direction remains problematic because the device's pointing direction does not always correspond to the walking direction. To overcome this difficulty, it is possible to use gait modeling b...
