Now showing items 1-19 of 19

  • 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)
    Part of book or chapter of book
    Restricted access - publisher's policy
    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)
    Conference report
    Restricted access - publisher's policy
    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 based candidate detector and its applications to spectrum sensing and through-the-wall radar imaging 

    Lagunas Targarona, Eva (Universitat Politècnica de Catalunya, 2014-03-07)
    Doctoral thesis
    Open Access
    Signal acquisition is a main topic in signal processing. The well-known Shannon-Nyquist theorem lies at the heart of any conventional analog to digital converters stating that any signal has to be sampled with a constant ...
  • 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)
    Conference report
    Restricted access - publisher's policy
    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. ...
  • Determining building interior structures using compressive sensing 

    Lagunas Targarona, Eva; Amin, Moeness; Ahmad, Fauzia; Nájar Martón, Montserrat (2013-01-22)
    Article
    Open Access
    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 ...
  • Estimación conjunta de TOA y DOA en sistemas UWB para localización 

    Lagunas Targarona, Eva (Universitat Politècnica de Catalunya, 2009-06)
    Master thesis (pre-Bologna period)
    Open Access
    El objetivo de este proyecto es el diseño de un algoritmo de localización para sistemas con tecnología Ultra-Wideband (UWB).
  • Innovative signal processing techniques for wireless positioning 

    Dardari, Davide; Di Dio, Mario; Emmanuele, Andrea; Fontanella, Diana; Gezici, Sinan; Gholami, Mohammad Reza; Kieffer, Michel; Lagunas Targarona, Eva; Louveaux, Jérôme; Mallat, Achraf; Nájar Martón, Montserrat; Navarro, Monica; Nicoli, Monica; Reggiani, Luca; Rydström, Mats; Ström, Erik G.; Vandendorpe, Luc; Zanier, Francesca (Elsevier, 2011-10)
    Part of book or chapter of book
    Restricted access - publisher's policy
  • Joint TOA and DOA estimation compliant with IEEE 802.15.4a standard 

    Lagunas Targarona, Eva; Nájar Martón, Montserrat; Navarro, Monica (2010)
    Conference report
    Open Access
    Ultra-WideBand (UWB) technology offers the potential of achieving high ranging accuracy through signal Time-Of-Arrival (TOA) measurements, even in harsh enviroments due to its ability to resolve multipath and penetrate ...
  • Joint wall mitigation and compressive sensing for indoor image reconstruction 

    Lagunas Targarona, Eva; Amin, Moeness; Ahmad, Fauzia; Nájar Martón, Montserrat (IEEE Press. Institute of Electrical and Electronics Engineers, 2012)
    Article
    Restricted access - publisher's policy
    Compressive sensing (CS) for urban operations and through-the-wall radar imaging has been shown to be successful in fast data acquisition and moving target localizations. The research in this area thus far has assumed ...
  • Pattern matching for building feature extraction 

    Lagunas Targarona, Eva; Amin, Moeness G.; Ahmad, Fauzia; Nájar Martón, Montserrat (2014-12-01)
    Article
    Restricted access - publisher's policy
    We address the problem of detecting building dominant scatterers using a reduced number of measurements with applications to through-the-wall radar (TWR) and urban sensing. We consider oblique illumination, which specially ...
  • Robust primary user identification using compressive sampling for cognitive radios 

    Lagunas Targarona, Eva; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    In cognitive radio (CR), the problem of limited spectral resources is solved by enabling unlicensed systems to opportunistically utilize the unused licensed bands. Compressive Sensing (CS) has been successfully applied to ...
  • Shared access satellite-terrestrial reconfigurable backhaul network enabled by smart antennas at mm-wave band 

    Artiga Campos, Xavier; Pérez Neira, Ana Isabel; Baranda, Jorge; Lagunas Targarona, Eva; Chatzinotas, Symeon; Ziaragkas, Georgios (2018-09-01)
    Article
    Open Access
    5G traffic expectations require not only the appropriate access infrastructure, but also the corresponding backhaul infrastructure to ensure a well-balanced network scaling. Optical fibre and terrestrial wireless backhaul ...
  • Space-time-frequency candidate methods for spectrum sensing 

    Lagunas Targarona, Eva; Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A. (2011)
    Conference lecture
    Restricted access - publisher's policy
    The basic idea behind Cognitive Radio (CR) is to allow unlicensed users to utilize licensed frequency bands when they do not interfere to the primary (licensed) users. Thus, an important requirement of CR systems is to ...
  • Sparse channel estimation based on compressed sensing theory for UWB systems 

    Lagunas Targarona, Eva (Universitat Politècnica de Catalunya, 2010-12-23)
    Master thesis
    Open Access
    Català: L'estimació de canal en receptors wireless esdevé un factor determinant a l'hora de incrementar les prestacions dels sistemes sense fils per tal de satisfer les exigències cada vegades més elevades dels consumidors ...
  • Sparse correlation matching-based spectrum sensing for open spectrum communications 

    Lagunas Targarona, Eva; Nájar Martón, Montserrat (2012-02)
    Article
    Open Access
    To deal with the current spectrum scarcity problem and exploiting the fact that exclusive access through tightly regulated licensing leads to idle spectrum, cognitive radio has been proposed as a way to reuse this ...
  • Spatial sparsity based direct positioning for IR-UWB in IEEE 802.15.4a channels 

    Lagunas Targarona, Eva; Navarro, Mònica; Closas Gómez, Pau; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    In this paper, we focus on the application of Compressive Sensing (CS) techniques to Impulse Radio (IR) Ultra-WideBand (UWB) positioning systems under indoor propagation environments. Direct Position Estimation (DPE) ...
  • Spectral feature detection with Sub-Nyquist sampling for wideband spectrum sensing 

    Lagunas Targarona, Eva; Nájar Martón, Montserrat (2015-07-01)
    Article
    Open Access
    Compressive sensing (CS) has been successfully applied to alleviate the sampling bottleneck in wideband spectrum sensing leveraging the sparsity described by the low spectral occupancy of the licensed radios. However, the ...
  • TOA Estimation in UWB: Comparison between time and frequency domain processing 

    Lagunas Targarona, Eva; Taponecco, Lorenzo; Nájar Martón, Montserrat; D'Amico, Antonio (2010)
    Conference report
    Open Access
    A comparison between time and frequency domain TOA estimators compliant with the 802.15.4a Standard has been made. The time domain estimator is done in two stages. One has the goal of identify the rst pulse in each symbol ...
  • Wall mitigation techniques for indoor sensing within the compressive sensing framework 

    Lagunas Targarona, Eva; Amin, Moeness G.; Ahmad, Fauzia; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
    Restricted access - publisher's policy
    Compressive sensing (CS) for urban operations and through-the-wall radar imaging has been shown to be successful in fast data acquisition and moving target localizations. However, the research work in this area thus ...