Recent Submissions

  • Parametric envelope in LPC speech coders 

    Moreno Bilbao, M. Asunción; Lagunas Hernandez, Miguel A.; Vallverdú Bayés, Francesc (1985)
    Conference report
    Open Access
    During the last decade, many efforts have been devoted to the relative importance of associated functions like magnitude and phase of Fourier Transforms in image and signal bandwidth reduction. The reported work deals with ...
  • The normalized backpropagation and some experiments on speech recognition 

    Monte Moreno, Enrique; Mariño Acebal, José Bernardo (Springer, 1990)
    Conference report
    Open Access
    In the paper we present the theoretical development of the normalized backpropagation, and we compare it with other algorithms that have been presented in the literature. The algorithm that we propose is based on the idea ...
  • Scanner de microondas. Una alternativa a la radiación ionizante 

    Reyes, E De Los; Jofre Roca, Lluís; Ferrando Bataller, Miquel; Elias Fusté, Antonio; Cardama Aznar, Ángel; Broquetas Ibars, Antoni; Rius Casals, Juan Manuel; Ibañez, J; Ripollés, O (1987)
    Conference report
    Open Access
    La utilización de radiación de microondas para la obtención de imágenes tomográficas de cuerpos biológicos es un nuevo campo de investigación que puede englobarse dentro de los métodos de diagnóstico no invasivo. El elemento ...
  • A cylindrical array for fast microwave tomography 

    de los Reyes, Elías; Jofre Roca, Lluís; Broquetas Ibars, Antoni; Elias Fusté, Antonio; Cardama Aznar, Ángel (Unión Científica Internacional de Radio (URSI), 1987)
    Conference report
    Open Access
  • Estudio de las distribuciones de las antenas de radar de barrido electrónico 

    de los Reyes, Elías; Ferrando, Miguel; Jofre Roca, Lluís; Elias Fusté, Antonio (Fundación Universidad-Empresa, 1986)
    Conference report
    Open Access
  • Simulation studies of optimal decentralized load-frequency regulators 

    Bertran Albertí, Eduardo; Herranz, J.; Munilla, I. (International Federation of Automatic Control (IFAC), 1986)
    Conference report
    Open Access
    On appliying the theory of the Optimal Decentralized Regulator (ODR) to the control of an Electric Power System (EPS), due attention has not been paid to some aspects such as the importance of the design model structure, ...
  • On the use of state-feedback in the design of elementary switching regulators 

    Bertran Albertí, Eduardo; Martínez Barrios, Luis; Poveda López, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 1987)
    Conference report
    Open Access
    The dc-to-dc buck switching converter is modelled by means of the State-Space Averaging Method and techniques of Modern Control Theory are applied to obtain a class of state-feedback control laws. Three different strategies ...
  • Multiplicadores de frecuencia para receptores coherentes de microondas 

    Corbella Sanahuja, Ignasi; Berenguer Sau, Jordi; Pradell i Cara, Lluís; Comerón Tejero, Adolfo; Bará, J; Artal, E (1986)
    Conference report
    Open Access
    The design of frequency multipliers using PLL techniques is presented in this article. The theory is dicussed and also experimental results of a x43 frequency multiplier with an output frequency of 11.4 GHz in wich excellent ...
  • PLL de microondas con tiempo de adquisición reducido 

    Berenguer Sau, Jordi; Artal, E.; Corbella Sanahuja, Ignasi; Comerón Tejero, Adolfo (1986)
    Conference report
    Open Access
    The behaviour of a PLL where the VCO is injection-locked to the reference frequency is studied. It is experimentally shown that the phase acquisition time can be reduced relative to the non-injection locked VCO situation. ...
  • Melangeur sous harmonique a MESFET AsGa 

    Elias Fusté, Antonio (1984)
    Conference report
    Open Access

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