Niederleithinger, Ernst Gardner, Simon Kind, Thomas Kaiser, Ralf Grunwald, Marcel Yang, Guangliang Redmer, Bernhard Waske, Anja Mielentz, Frank Effner, Ute
...
Published in
Journal of Nondestructive Evaluation
Quality assurance and condition assessment of concrete structures is an important topic world-wide due to the aging infrastructure and increasing traffic demands. Common topics include, but are not limited to, localisation of rebar or tendon ducts, geometrical irregularities, cracks, voids, honeycombing or other flaws. Non-destructive techniques su...
Develter, Pierre Bosse, Jonathan Rabaste, Olivier Forster, P Ovarlez, Jean-Philippe
In this paper, we tackle the problem of off-grid radar target detection based on the Normalized Matched Filter. State-ofthe-art solutions to this problem include the use of the Generalized Likelihood Ratio test (GLRT), whose implementation can be costly, subspace detectors, or oversampling. In this paper, we introduce a new solution for improving d...
Oteman, Bas Scrieciu, Albert Bouma, Tjeerd Joris Stanica, Adrian van der Wal, Daphne
Published in
Wetlands
Reed is an important wetland species. In some places it provides valuable ecosystem services, while in other places it poses a threat as an invasive species. Thus, monitoring and predicting reed dynamics is crucial. We not only detected changes in reed area using remote sensing, but also developed indicators for the stability of reed wetlands based...
Helen Victoria, A. Maragatham, G.
Published in
Wireless Networks
Human activity recognition has become an obligatory necessity in day to day life and possible solutions can be provided with the technological advancement of sensing field. Radar based sensing with its unbeatable unique features has been a promising solution for identifying and distinguishing human activities in recent years. The ascent of loss of ...
Abdullahi, M. B. Ali, M. H.
Published in
Beni-Suef University Journal of Basic and Applied Sciences
BackgroundRecent advances in material science and electronics led to the rapid development of communication devices and radar detection techniques resulting in an ever-increasing demand for improved stealth performance of air vehicles during scouts. Absorber design employing metastructure concept has recently become a popular approach to improving ...
Sakkila, L. Tatkeu, C. Rivenq, A. Zaidouni, J. Bocquet, M.
In this paper, a study of UWB receivers in terms of detection theory is presented. The UWB radar which is presented in many works previously [1]-[3] has many applications. For road UWB radar application, the receiver based on correlation is the optimum receiver [4]. In fact, it maximizes the probability of detection. We will consider, in this study...
Nguyen, Toai-Chi
Falls in the disabled and elderly people have been a cause of concern as they can be immobilized by the fall and have no way to contact others and seek assistance. The proposed frequency modulated continuous wave (FMCW) short range radar (SRR) system, which uses ultra-wideband (UWB) signals can provide immediate assistance by monitoring and detecti...
Zhang, Xi
Cette thèse s’inscrit dans le cadre du projet SouBois financé par la région Nouvelle Aquitaine. L’objectif est de proposer une méthodologie de couplage de méthodes de Contrôle Non Destructif (CND) basées sur la propagation des ondes électromagnétiques (Radar) et mécaniques (Ultrasons) afin de fiabiliser l’auscultation et la surveillance des élément...
boughanmi, Imen
Dans le domaine du génie civil, la réception des chaussées neuves s’accompagne d’un ensemble de contrôle de paramètres physiques, notamment de la compacité des enrobés bitumineux par des méthodes normalisées. Ce contrôle assure la bonne mise en œuvre des routes pour leur conférer les critères mécaniques attendus et une durée de vie optimale. Actuel...
Varelas, Konstantinos
In this thesis, we investigate aspects of adaptive randomized methods for black-box continuous optimization. The algorithms that we study are based on the Covariance Matrix Adaptation Evolution Strategy (CMA-ES) algorithm and focus on large scale optimization problems.We start with a description of CMA-ES and its relation to the Information Geometr...
