Enviaments recents

  • TS-MUWSN: Time synchronization for mobile underwater sensor networks 

    Pallarés Valls, Oriol; Bouvet, Pierre-jean; Río Fernandez, Joaquín del (2016-10-01)
    Article
    Accés obert
    Time synchronization is an important, yet challenging, problem in underwater sensor networks (UWSNs). This challenge can be attributed to: 1) messaging timestamping; 2) node mobility; and 3) Doppler scale effect. To mitigate ...
  • Range-only benthic rover localization off the central California coast 

    Masmitjà Rusiñol, Ivan; Gomáriz Castro, Spartacus; Río Fernandez, Joaquín del; Kieft, B; O'Reilly, Thomas C. (Antoni Mànuel, 2016-10-19)
    Article
    Accés obert
    Nowadays, the use of autonomous vehicles for ocean research has increased, since these vehicles have a better cost/performance ratio than crewed vessels or oceanographic ships. For example, autonomous surface vehicles can ...
  • An ocean kinetic energy converter for low-power applications using piezoelectric disk elements 

    Viñolo Monzoncillo, Carlos; Toma, Daniel; Manuel Lázaro, Antonio; Río Fernandez, Joaquín del (2013-09-30)
    Article
    Accés restringit per política de l'editorial
    The main problem facing long-term electronic system deployments in the sea, is to find a feasible way to supply them with the power they require. Harvesting mechanical energy from the ocean wave oscillations and converting ...
  • Testing otter board hydrodynamic performances in wind tunnel facilities 

    Mellibovsky Elstein, Fernando; Prat Farran, Joana d'Arc; Notti, Emilio; Sala, Antonello (2015-08-01)
    Article
    Accés restringit per política de l'editorial
    The feasibility and potential advantages of wind tunnel testing of otter board designs are assessed. Traditional flume tank tests incur high operational costs and present some limitations in terms of flexibility and accuracy. ...
  • Use of low-cost acquisition systems with an embedded linux device for volcanic monitoring 

    Moure, David; Torres, Pedro Antonio; Casas, Benito; Toma, Daniel; Blanco, María José; Río Fernandez, Joaquín del; Manuel Lázaro, Antonio (2015-08-19)
    Article
    Accés obert
    This paper describes the development of a low-cost multiparameter acquisition system for volcanic monitoring that is applicable to gravimetry and geodesy, as well as to the visual monitoring of volcanic activity. The ...
  • Vilanova sea trials of Guanay II AUV 

    Masmitjà Rusiñol, Ivan; González Agudelo, Julián; Gomáriz Castro, Spartacus; Prat Tasias, Jordi; Río Fernandez, Joaquín del (Antoni Mànuel, 2015-09-01)
    Article
    Accés obert
  • Hybrid time synchronization for Underwater Sensor Networks 

    Pallarés Valls, Oriol; Bouvet, Pierre-Jean; Río Fernandez, Joaquín del (2015-09-30)
    Article
    Accés obert
    Time synchronization is a critical part of distributed applications over a sensor network. In this work we investigate time synchronization problems over UWSN deployed in shallow water, taking into account all main ...
  • Light and current generation system for measuring the behaviour of the Norway lobster 

    Sarriá Gandul, David; Sbragaglia, Valerio; Gomáriz Castro, Spartacus; Garcia, José Antonio; Artero Delgado, Carola; Aguzzi, Jacopo; Sardà Amills, Francesc; Manuel Lázaro, Antonio (2015-06-01)
    Article
    Accés obert
    Patterns of how the Norway lobster (Nephrops norvegicus L.) emerges from its burrow in relation to sea currents at different times of the day-night cycles is currently unknown. The degree of influence of these variables ...
  • Control difuso para el seguimiento de guiñada del AUV Cormorán 

    González Agudelo, Julián; Gomáriz Castro, Spartacus; Batlle Arnau, Carles (2015-03-31)
    Article
    Accés obert
  • Flexible biometric online speaker-verification system implemented on FPGA using vector floating-point units 

    Cantó Navarro, Enrique; López García, Mariano; Ramos Lara, Rafael Ramón; Sánchez Reíllo, Raúl (2014-12-01)
    Article
    Accés obert
    This paper presents the implementation of a speaker-verification system on field programmable gate array. The algorithm is executed by software over an embedded system that includes a MicroBlaze microprocessor connected ...

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