Institut de Recherche de l’École navale (IRENAV): Soumissions récentes

Voici les éléments 176-182 de 271

    • Audio watermarking via EMD 
      Article dans une revue avec comité de lecture
      KHALDI, Kais; ccBOUDRAA, Abdel-Ouahab (Institute of Electrical and Electronics Engineers, 2013)
      In this paper a new adaptive audio watermarking algorithm based on Empirical Mode Decomposition (EMD) is introduced. The audio signal is divided into frames and each one is decomposed adaptively, by EMD, into intrinsic ...
    • On signals compression by EMD 
      Article dans une revue avec comité de lecture
      KHALDI, Kais; ccBOUDRAA, Abdel-Ouahab (IET, 2012)
      In this letter a new signals coding framework based on the Empirical Mode Decomposition (EMD) is introduced. The EMD breaks down any signal into a reduced number of oscillating components called Intrinsic Modes Decomposition ...
    • 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 ...
    • Cavity induced vibration of flexible hydrofoils 
      Article dans une revue avec comité de lecture
      AKCABAY, Deniz Tolga; CHAE, Eun Jung; YOUNG, Yin Lu; DUCOIN, Antoine; ccASTOLFI, Jacques Andre (Elsevier, 2014)
      The objective of this work is to investigate the influence of cavity-induced vibrations on the dynamic response and stability of a NACA66 hydrofoil at 8° angle of attack at Re=750 000 via combined experimental measurements ...
    • Analysis of added mass in cavitating flow 
      Article dans une revue avec comité de lecture
      BENAOUICHA, Mustapha; ccASTOLFI, Jacques Andre (Elsevier, 2012)
      The paper addresses a theoretical study of the added mass effect in cavitating flow.The cavitation is considered to induce a strong time–space variation of the fluid density at the interface between an inviscid fluid and ...
    • Simulating variable pitch crossflow water turbines: A coupled unsteady ONERA-EDLIN model and streamtube model 
      Article dans une revue avec comité de lecture
      PAILLARD, Benoît; ccHAUVILLE, Frederic; ccASTOLFI, Jacques Andre (Elsevier, 2013)
      This article describes a new method for simulating unsteady hydrodynamics forces and moments on the blades of a crossflow ‘Darrieus’ turbine with active pitch variation. This method is based on the ONERAEDLIN dynamic stall ...
    • Initiation à la détection d’objets en acoustique sous-marine 
      Communication avec acte
      DARE-EMZIVAT, Delphine; LABAT, Valérie; DESMARE, Rozenn (2010)
      Nous présentons dans cet article l’approche expérimentale mise en oeuvre au sein du département Signal et Acoustique de l’Ecole Navale pour l’enseignement pratique de l’acoustique sous marine aux élèves officiers. Il s’agit ...