Institut de Recherche de l’École navale (IRENAV): Recent submissions

Now showing items 162-168 of 271

    • Bubble sweep-down occurrence characterization on Research Vessels 
      Article dans une revue avec comité de lecture
      DELACROIX, Sylvain; GERMAIN, Gregory; BERGER, Laurent; BILLARD, Jean-Yves (Elsevier, 2015)
      Bubble sweep-down on oceanographic vessels generates acoustic perturbations.We propose in this work to characterize the sub-surface bubbles occurrence conditions from acoustic data analysis acquired during surveys in ...
    • Numerical modeling of underwater parametric propagation to detect buried objects 
      Communication avec acte
      BOUTTARD, Etienne; LABAT, Valérie; BOU MATAR, Olivier (2011)
      In underwater acoustics, detection of buried objects in sediments (cables, mines,…) is a complex problem. One reason is that acoustic attenuation in these sediments increases with frequency. To ensure sufficient penetration ...
    • Experimental Validation of a Marine Current Turbine Simulator: Application to a Permanent Magnet Synchronous Generator-Based System Second-Order Sliding Mode Control 
      Article dans une revue avec comité de lecture
      BENELGHALI, Seifeddine; BENBOUZID, Mohamed; CHARPENTIER, Jean-Frederic; AHMED-ALI, Tarek; MANTEANU, Julian (Institute of Electrical and Electronics Engineers, 2011)
      This paper deals with the experimental validation of a Matlab-Simulink simulation tool of marine current turbine (MCT) systems. The developed simulator is intended to be used as a sizing and site evaluation tool for MCT ...
    • A Comparative Study of Time-Frequency Representations for Fault Detection in Wind Turbine 
      Communication avec acte
      EL BOUCHIKHI, EL HOUSSIN; CHOQUEUSE, Vincent; BENBOUZID, Mohamed; CHARPENTIER, Jean-Frederic; BARAKAT, Georges (IEEE, 2011)
      To reduce the cost of wind energy, minimization and prediction of maintenance operations in wind turbine is of key importance. In variable speed turbine generator, advanced signal processing tools are required to detect ...
    • T-wave generation and propagation: A comparison between data and spectral element modeling 
      Article dans une revue avec comité de lecture
      JAMET, Guillaume; GUENNOU, Claude; GUILLON, Laurent; MAZOYER, Camille; ROYER, Jean-Yves (Acoustical Society of America, 2013)
      T-waves are underwater acoustic waves generated by earthquakes. Modeling of their generation and propagation is a challenging problem. Using a spectral element code—SPECFEM2D, this paper presents the first realistic ...
    • An Ontology for Submarine Feature Representation on Charts 
      Communication avec acte
      YAN, Jingya; GUILBERT, Eric; ccSAUX, Eric (Springer-Verlag, 2013)
      A landform is a subjective individuation of a part of a terrain. Landform recognition is a difficult task because its definition usually relies on a qualitative and fuzzy description. Achieving automatic recognition of ...
    • A semantic and language-based representation of an environmental scene 
      Article dans une revue avec comité de lecture
      LE YAOUANC, Jean-Marie; ccSAUX, Eric; ccCLARAMUNT, Christophe (Springer Verlag, 2010)
      The modeling of a landscape environment is a cognitive activity that requires appropriate spatial representations. The research presented in this paper introduces a structural and semantic categorization of a landscape ...