Exploració per autor "Nájar Martón, Montserrat"Més informacióMés informació

Ara es mostren els items 7-26 de 66

    • Casting signal processing to reall-world data 

      Closas Gómez, Pau; Conti, Andrea; Dardari, Davide; Decarli, Nicoló; Falletti, Emanuela; Fernández Prades, Carlos; Gholami, Mohammad Reza; Nájar Martón, Montserrat; Lagunas Targarona, Eva; Pini, Marco; Rydström, Mats; Sottile, Francesco; Ström, Erik G. (Elsevier, 2011-10)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This chapter presents the results of a testing and validation activity carried out to analyze the performance of signal-processing techniques related to positioning and navigation. The steps included the setup of a measurement ...

    • Compressed spectrum sensing in the presence of interference: comparison of sparse recovery strategies 

      Lagunas Targarona, Eva; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Existing approaches to Compressive Sensing (CS) of sparse spectrum has thus far assumed models contaminated with noise (either bounded noise or Gaussian with known power). In practical Cognitive Radio (CR) networks, primary ...

    • Compressive sensing for through wall radar imaging of stationary scenes using arbitrary data measurements 

      Lagunas Targarona, Eva; Amin, Moeness G.; Ahmad, Fauzia; Nájar Martón, Montserrat (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, we deal with removal of wall EM reflections prior to image reconstruction using step-frequency radars. The goal is to enable behind-the-wall target detection and localization from reduced data measurements. ...

    • Compressive spectrum sensing based on spectral shape feature detection 

      Lagunas, Eva; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, we address sparsity-based spectrum sensing for Cognitive Radio (CR) applications. Motivated by the sparsity described by the low spectral occupancy of the licensed radios, the proposed approach utilizes the ...

    • Conformador de haz de referencia por código de dos etapas: aplicación a la recepción de señales con modulación de saltos frecuenciales 

      Nájar Martón, Montserrat (Universitat Politècnica de Catalunya, 1996-10-25)
      Tesi
      Accés obert
      La tesis propone un nuevo conformador de haz para la recepción de señales con modulación de saltos frecuenciales "frequency hopping" (FH) basado en el conocimiento de la secuencia de frecuencias utilizada en la modulación ...

    • Cramer-rao bound for time-delay estimation in the frequency domain 

      Serra, Jordi; Blanco, Luis; Nájar Martón, Montserrat (European Association for Signal Processing (EURASIP), 2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper a measure of performance of time delay estimators arising from a frequency model of the received signal is presented. The aim is to derive theoretical analysis of the Cramer-Rao bound (CRB) for time delay ...

    • Determining building interior structures using compressive sensing 

      Lagunas Targarona, Eva; Amin, Moeness; Ahmad, Fauzia; Nájar Martón, Montserrat (2013-01-22)
      Article
      Accés obert
      We consider imaging of the building interior structures using Compressive Sensing (CS) with applications to through-the-wall imaging and urban sensing. We consider a monostatic synthetic aperture radar imaging system ...

    • Double shrinkage correction in sample LMMSE estimation 

      Serra, Jordi; Nájar Martón, Montserrat (European Association for Signal Processing (EURASIP), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The sample linear minimum mean square error (LMMSE) es- timator undergoes high performance degradation in the small sample size regime. Herein a double shrinkage correction is proposed to alleviate this problem. First, ...

    • Energy efficiency communications over the AWGN relay channel 

      Gómez Vilardebó, Jesús; Pérez Neira, Ana Isabel; Nájar Martón, Montserrat (2010)
      Article
      Accés restringit per política de l'editorial
      This paper addresses the energy efficiency analysis of the relay channel under additive white Gaussian noise. We consider the rate bounds given by decode and forward and the cut set bound and assume that resources are ...

    • Energy efficient communications over the AWGN relay channel 

      Gómez Vilardebó, Jesús; Pérez Neira, Ana Isabel; Nájar Martón, Montserrat (2010-01-08)
      Article
      Accés obert
      This paper addresses the energy efficiency analysis of the relay channel under additive white Gaussian noise. We consider the rate bounds given by decode and forward and the cut set bound and assume that resources are ...

    • Examen Final 

      Nájar Martón, Montserrat; Pascual Iserte, Antonio; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2023-06-01)
      Examen
      Accés restringit a la comunitat UPC

    • Examen Final 

      Nájar Martón, Montserrat; Pagès Zamora, Alba Maria; Riba Sagarra, Jaume (Universitat Politècnica de Catalunya, 2019-01-21)
      Examen
      Accés restringit a la comunitat UPC

    • Examen Final 

      Nájar Martón, Montserrat (Universitat Politècnica de Catalunya, 2013-06-05)
      Examen
      Accés restringit a la comunitat UPC

    • EXAMEN FINAL 

      Nájar Martón, Montserrat; Pascual Iserte, Antonio; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2022-05-30)
      Examen
      Accés restringit a la comunitat UPC

    • Examen Final 

      Nájar Martón, Montserrat; Pagès Zamora, Alba Maria; Fernández Rubio, Juan Antonio (Universitat Politècnica de Catalunya, 2018-01-18)
      Examen
      Accés restringit a la comunitat UPC

    • Examen Final 

      Fernández Rubio, Juan Antonio; Nájar Martón, Montserrat; Pagès Zamora, Alba Maria (Universitat Politècnica de Catalunya, 2021-01-18)
      Examen
      Accés restringit a la comunitat UPC

    • Examen Re-evalación 

      Nájar Martón, Montserrat; Pagès Zamora, Alba Maria; Vázquez Grau, Gregorio; Vidal Manzano, José (Universitat Politècnica de Catalunya, 2021-07-07)
      Examen
      Accés restringit a la comunitat UPC

    • Examen Reavaluació 

      Cabrera-Bean, Margarita; Lamarca Orozco, M. Meritxell; Nájar Martón, Montserrat; Pagès Cruz, Albert (Universitat Politècnica de Catalunya, 2023-06-29)
      Examen
      Accés restringit a la comunitat UPC

    • Filter bank transceiver design for ultra wideband 

      Ibars, C.; Navarro, Mònica; Fernández Prades, Carlos; Artiga, Xavier; Moragrega, Ana; George-Gavrincea, Ciprian; Mollfulleda, Antonio; Nájar Martón, Montserrat (Sciyo.com, 2010-09)
      Capítol de llibre
      Accés obert

    • Frequency domain joint TOA and DOA estimation in IR-UWB 

      Navarro, M; Nájar Martón, Montserrat (2011-10)
      Article
      Accés restringit per política de l'editorial
      This paper addresses the problem of TOA and DOA estimation in IR-UWB systems. It considers a frequency domain approach for joint high resolution estimation of Time Of Arrival (TOA) and Direction Of Arrival (DOA). The ...