Enviaments recents

  • Phoneme recognition with statistical modeling of the prediction error of neural networks 

    Freitag, Fèlix; Monte Moreno, Enrique (International Speech Communication Association (ISCA), 1998)
    Text en actes de congrés
    Accés obert
    This paper presents a speech recognition system which incorporates predictive neural networks. The neural networks are used to predict observation vectors of speech. The prediction error vectors are modeled on the state ...
  • Blind multi-user combining at the base station for asynchronous CDMA systems 

    Muñoz Medina, Olga; Fernández Rubio, Juan Antonio (Institute of Electrical and Electronics Engineers (IEEE), 1996)
    Text en actes de congrés
    Accés obert
    This paper studies the potential benefits of antenna arrays in cellular CDMA communications and proposes a powerful scheme to undertake the array processing at the base station in CDMA mobile systems. The proposed technique ...
  • Feature decorrelation methods in speech recognition. A comparative study 

    Batlle Mont, Eloi; Nadeu Camprubí, Climent; Rodríguez Fonollosa, José Adrián (International Speech Communication Association (ISCA), 1998)
    Text en actes de congrés
    Accés obert
    In this paper we study various decorrelation methods for the features used in speech recognition and we compare the performance of each one by running several tests with a speech database. First of all we study the ...
  • Motion analysis of image sequences using connected operators 

    Garrido Ostermann, Luis; Oliveras Vergés, Albert; Salembier Clairon, Philippe Jean (International Society for Photo-Optical Instrumentation Engineers (SPIE), 1997)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper deals with a class of morphological operators called connected operators. These operators interact with the signal by merging flat zones. As a results, they do not create any new contours and are very attractive ...
  • Acoustic feature prediction from semantic features for expressive speech using deep neural networks 

    Jauk, Igor; Bonafonte Cávez, Antonio; Pascual, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The goal of the study is to predict acoustic features of expressive speech from semantic vector space representations. Though a lot of successful work was invested in expressiveness analysis and prediction, the results ...
  • Impact of antenna tuning on SMOS correlation loss 

    Torres Torres, Francisco; Durán Martínez, Israel; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Closa, Josep; Oliva, Roger; Martín-Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The Soil Moisture and Ocean Salinity (SMOS) mission by the European Space Agency (ESA) was launched in 2009 [1]. Since then, it has produced a continuous stream of valuable geophysical data over land, ice and ocean [2] ...
  • Automatic detection of sub-optimal performance in UMTS networks based on drive-test measurements 

    Sallent Roig, José Oriol; Pérez Romero, Jordi; Sánchez González, Juan; Agustí Comes, Ramon; Díaz Guerra, Miguel Angel; Henche, David; Paul, Daniel (2011)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    This paper presents a methodology for the automatic detection of sub-optimal performance in UMTS networks based on drive-test measurements. The proposed methodology can be seen as a first step towards the more ambitious ...
  • Silicon photomultiplier detector for atmospheric lidar applications 

    Riu Gras, Jordi; Sicard, Michaël; Royo Royo, Santiago; Comerón Tejero, Adolfo (2012-04-01)
    Article
    Accés restringit per política de l'editorial
    The viability and performance of using a silicon photomultiplier (SiPM) in atmospheric lidar applications is experimentally compared against the well-established use of photomultiplier tubes. By using a modified lidar setup ...
  • D1.2 Project management guidelines 

    Baldini, Gianmarco; Delmas, Serge; Hirst, Paul; Ferrús Ferré, Ramón Antonio; Pisz, Rafal; Sallent Roig, José Oriol (2011-03-03)
    Report de recerca
    Accés restringit per acord de confidencialitat
  • Multicolor solitons 

    Torner Sabata, Lluís; Stegeman, George (2001-06)
    Article
    Accés restringit per política de l'editorial
  • Active mesh coding and rate-distortion theory 

    Salembier Clairon, Philippe Jean; Martí Navarro, Eva; Pardàs Feliu, Montse (Institute of Electrical and Electronics Engineers (IEEE), 1996)
    Comunicació de congrés
    Accés obert
    This paper presents a video coding scheme for very low bit rate applications. The coding approach relies on active meshes and can be viewed as a particular case of region-based coding. The active mesh is used to efficiently ...
  • Rf interference analysis in aperture synthesis interferometric radiometers: application to l-band miras instrument 

    Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Torres, F; Bará, J; Capdevila Vives, Joan (Institute of Electrical and Electronics Engineers (IEEE), 2000-03)
    Article
    Accés obert
    Current spaceborne radiometers do not achieve the required spatial resolution demanded by the scientific community due to antenna-size technological limitations. In recent years, several space agencies have been studying ...

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