Recent Submissions

  • Filtrado transversal adaptativo de varianza constante para la ecualización de canal 

    Vázquez Grau, Gregorio; Gasull Llampallas, Antoni; Sánchez Umbría, Juan; Oliveras Vergés, Albert (1989)
    Conference report
    Open Access
    This paper describes the problem of lineal filtering of noisy data under a Maximum Likelihood objective. In this sense, the paper shows that a weighted square error cost function deals and it is necessary to weight the ...
  • Procesado digital de imágenes para la detección y seguimiento de células 

    Sayrol Clols, Elisa; Gasull Llampallas, Antoni (1989)
    Conference report
    Open Access
    A new computerized methodology is described in which detection and tracking of human spermatozoa in semen are analized using a personal computer. Several aproaches are studied in order to quantify the number of spermatozoa ...
  • Measuring true spectral density from ML filters (NMLM and q-NMLM spectral estimates) 

    Lagunas Hernandez, Miguel A.; Gasull Llampallas, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 1984)
    Conference report
    Open Access
    Starting from the classical procedure reported by Capon for power level estimation from ML filters, the authors present how this method can be modifyed in order to obtain a power spectral density estimate. The basic idea ...
  • Cross spectrum ML estimate 

    Lagunas Hernandez, Miguel A.; Santamaría Pérez, María Eugenia; Gasull Llampallas, Antoni; Moreno Bilbao, M. Asunción (Institute of Electrical and Electronics Engineers (IEEE), 1985)
    Conference report
    Open Access
    This work reports how to include general concepts of the one-dimensional MLM procedure in a two-channel problem of cross-spectrum estimation. It is shown in the sequel that there is no any problem in extrapolating the ...
  • Método MLNq para arrays de alta resolución 

    Gasull Llampallas, Antoni; Lagunas Hernandez, Miguel A.; Fernández Rubio, Juan Antonio; Moreno Bilbao, M. Asunción (Universidad de Sevilla, 1984)
    Conference report
    Open Access
    Spectral analysis techniques are used to bearing estimation problem. Each one of this gives a different array beamforming. We show here a generalized normalized Maximum Likehood Method which present a high resolution ...
  • Data pre-processing for high-resolution adaptive algorithms 

    Vázquez Grau, Gregorio; Gasull Llampallas, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 1988)
    Conference report
    Open Access
    The inclusion of adaptive methods in high-resolution spectral estimation algorithms is considered. The generation of a complete family of spectral estimators from the normalized maximum-likelihood method (MLM) is discussed. ...
  • Data pre-processing for high-resolution adaptive algorithms 

    Vázquez Grau, Gregorio; Gasull Llampallas, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 1988)
    Conference report
    Open Access
    The inclusion of adaptive methods in high-resolution spectral estimation algorithms is considered. The generation of a complete family of spectral estimators from the normalized maximum-likelihood method (MLM) is discussed. ...
  • Algoritmo para la estimación óptima de la fase instantánea 

    Lagunas Hernandez, Miguel A.; Gasull Llampallas, Antoni; Figueiras Vidal, Aníbal R.; Carol Vilanova, Antonio (1980)
    Conference report
    Open Access
    A new approach in the problem of phase detectors is presented. The procedure is started from the optimum design of digital phase locked loop (DPLL) and some fundamental aspects as the state equations for the communication ...
  • Remote sensing image processing with graph cut of binary partition trees 

    Salembier Clairon, Philippe Jean; Foucher, Samuel (Instituto Politécnico Nacional, 2014)
    Conference report
    Restricted access - publisher's policy
    This paper discusses the interest of hierarchical region-based representations of images such as Binary Partition Trees (BPTs) and the usefulness of graph cut to process them. BPTs can be considered as an initial abstraction ...
  • Known Input Power Spectrum in Adaptive L.M.S. and A. G. Algorithms 

    Vázquez Grau, Gregorio; Gasull Llampallas, Antoni; Lagunas Hernandez, Miguel A. (1986)
    Conference report
    Open Access
    This work deals with the use of previous or colateral information to improve the behaviour of adaptive algorithms. The study is made on gradient-baseq methods due te the relatively simple and good performances that they ...

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