Now showing items 21-40 of 436

    • A pulsed carrier recovery using a discrete conception of the PLL 

      Aguasca Solé, Alberto; Broquetas Ibars, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 1992)
      Conference report
      Open Access
      A bistatic radar system requires accurate synchronization between the transmitter and the remote receiver in order to achieve a correct coherent target detection and positioning. An unlinked receiver carrier phase/frequency ...
    • A recursive SVD algorithm for array signal processing 

      Duarte Ortigueira, Manuel; Lagunas Hernandez, Miguel A. (Elsevier, 1990)
      Conference report
      Open Access
    • A review of higher order ionospheric refraction effects on dual frequency GPS 

      Petrie, Elisabeth J.; Hernández Pajares, Manuel; Spalla, Paolo; Moore, Philip; King, Matt A. (2010-11-26)
      Article
      Restricted access - publisher's policy
      Abstract Higher order ionospheric effects are increasingly relevant as precision requirements on GPS data and products increase. The refractive index of the ionosphere is affected by its electron content and the magnetic ...
    • A robust fault diagnosis and forecasting approach based on Kalman filter and interval type-2 fuzzy logic for efficiency improvement of centrifugal gas compressor system 

      Nail, Bachir; Kouzou, Abdellah; Hafaifa, Ahmed; Hadroug, Hadji; Puig Cayuela, Vicenç (2019-01-01)
      Article
      Open Access
      The paper proposes a robust faults detection and forecasting approach for a centrifugal gas compressor system, the mechanism of this approach used the Kalman filter to estimate and filtering the unmeasured states of the ...
    • A scenario centred approach to emotion profiling based on EEG signal processing 

      Reyes Muñoz, María Angélica; Rebolledo Mendez, Genaro; Callaghan, Victor (Springer, 2017)
      Conference report
      Restricted access - publisher's policy
      This paper considers how the use of physiological sensing to measure human emotions will change the world in areas such as education, human-robot interfaces, job applications, interaction with friends, finding love and ...
    • A single antenna ambient noise cancellation method for in-situ radiated EMI measurements in the time-domain 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (2016)
      Conference report
      Open Access
      This paper presents a single antenna ambient noise cancellation method for in-situ radiated emissions measurements performed using an entirely time-domain approach and the sliding window Empirical Mode Decomposition. The ...
    • A software-defined spaceborne GNSS receiver 

      Fernandez Prades, Carles; Arribas Lázaro, Javier; Majoral Ramoneda, Marc; Ramos, Antonio; Vila Valls, Jordi; Giordano, Pietro (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      This paper reports the design, proof-of-concept implementation and preliminary performance assessment of a low-cost, software-defined spaceborne GNSS receiver. The presented approach takes advantage of the flexibility of ...
    • A statistical reference criterion for adaptive filtering 

      Sala Álvarez, José; Vázquez Grau, Gregorio (Institute of Electrical and Electronics Engineers (IEEE), 1996)
      Conference report
      Open Access
      A cost function for adaptive filtering is proposed, based on the statistical reference criterion. The purpose of this criterion is to enforce a given probability density function at the output of a system. The only ...
    • A translinear, log-domain FPAA on standard CMOS technology 

      Fernández, Daniel; Martínez Alvarado, Luis Arturo; Madrenas Boadas, Jordi (2012-02)
      Article
      Restricted access - publisher's policy
      A field-programmable analog array (FPAA) using a standard-CMOS wide-dynamic-range translinear element (TE) is introduced. The FPAA configurable analog blocks (CABs) are based on a reconfigurable translinear cell (RTC), ...
    • Acoustic event detection: SVM-based system and evaluation setup in CLEAR’07 

      Temko, Andrey A.; Nadeu Camprubí, Climent; Isaac, Joan Biel (2008)
      Article
      Open Access
      In this paper, the Acoustic Event Detection (AED) system developed at the UPC is described, and its results in the CLEAR evaluations carried out in March 2007 are reported. The system uses a set of features composed of ...
    • 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)
      Conference report
      Restricted access - publisher's policy
      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 ...
    • Actuator fault-tolerant control based on set separation 

      Ocampo-Martínez, Carlos; de Doná, José Adrian; Serón, María (2010-12)
      Article
      Open Access
      In this paper, an actuator fault-tolerant control (FTC) strategy based on set separation is presented. The proposed scheme employs a standard configuration consisting of a bank of observers which match the different fault ...
    • Adaptive array beamforming for frequency hopping modulation 

      Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A. (1996)
      Conference report
      Open Access
      A new architecture for Array Processing using Frequency Hopping (FH) modulation is addressed in this paper which takes advantage of the knowledge of the frequency sequence at the receiver, requiring neither temporal nor ...
    • Adaptive beamforming with temporal and spatial references in satellite communications 

      Fernández Rubio, Juan Antonio (1990)
      Conference report
      Open Access
    • Adaptive blind equalization and demodulation without channel and signal parameter extraction 

      Sala Álvarez, José; Vázquez Grau, Gregorio (1994)
      Conference report
      Open Access
      The problem of filtering a source of known statistics in noise and/or interference of unknown statistics is addressed in this paper. In a general framework, the optimum estimation (detection) of the desired signal requires ...
    • Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar 

      Makhoul Varona, Eduardo (Universitat Politècnica de Catalunya, 2009-06-29)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Deutsches Zentrum für Luft-und Raumfahrt
      The thesis “Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar” is a project carried out in the Microwaves and Radar Institute (IHR) at the German Aerospace Center (DLR) The objective ...
    • Adaptive estimation of the stable boundary layer height using combined lidar and microwave radiometer observations 

      Saeed, Umar; Rocadenbosch Burillo, Francisco; Crewell, Susanne (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Article
      Open Access
      A synergetic approach for the estimation of stable boundary-layer height (SBLH) using lidar and microwave radiometer (MWR) data is presented. Vertical variance of the backscatter signal from a ceilometer is ...
    • Adaptive prediction and bit-assignment in subband coding of speech 

      Mariño Acebal, José Bernardo; Martí Ros, Jaume (1985)
      Conference report
      Open Access
      The combination of time-domain harmonic scaling (TDHS) and sub-band coding (SBC) provides an encoding approach which allows 9.6 Kb/s speech encoding with good communication quality. Starting from this structure, this paper ...
    • Adaptive sampling for fast sparsity pattern recovery 

      Ramírez Javega, Francisco; Matas Navarro, David; Lamarca Orozco, M. Meritxell (2011)
      Conference report
      Open Access
      In this paper we propose a low complexity adaptive algorithm for lossless compressive sampling and reconstruction of sparse signals. Consider a sparse non-negative real signal x containing only k << n non-zero values. ...
    • Adaptive vector predictive speech coding with sample by sample update at 16 Kbps 

      Masgrau Gómez, Enrique José; Mariño Acebal, José Bernardo (1986)
      Conference report
      Open Access
      A vectorial generalization of the ADPCM system is introduced. Once the speech signal is grouped in vectors, they are coded using a vector predictor (VP) and a vector quantizer (VQ). Both subsystems are continously adaptive; ...