Recent Submissions

  • Synthesis of acoustic wave filters : ladder and transversal topologies : towards a practical implementation 

    Hueltes Escobar, Alberto (Universitat Politècnica de Catalunya, 2021-02-05)
    Doctoral thesis
    Open Access
    The meteoric growth of the mobile communication market for the last three decades has been strongly related with the evolution of the electroacoustic (EA) filter technology. With way over 5 billion cell phone users worldwide ...
  • Matrix completion with prior information in reproducing kernel Hilbert spaces 

    Giménez Febrer, Pedro Juan (Universitat Politècnica de Catalunya, 2021-02-11)
    Doctoral thesis
    Open Access
    In matrix completion, the objective is to recover an unknown matrix from a small subset of observed entries. Most successful methods for recovering the unknown entries are based on the assumption that the unknown full ...
  • Self-supervised deep learning approaches to speaker recognition 

    Khan, Umair (Universitat Politècnica de Catalunya, 2021-01-11)
    Doctoral thesis
    Open Access
    In speaker recognition, i-vectors have been the state-of-the-art unsupervised technique over the last few years, whereas x-vectors is becoming the state-of-the-art supervised technique, these days. Recent advances in Deep ...
  • Injection of linguistic knowledge into neural text generation models 

    Casas Manzanares, Noé (Universitat Politècnica de Catalunya, 2020-12-14)
    Doctoral thesis
    Open Access
    Language is an organic construct. It emanates from the need for communication and changes through time, influenced by multiple factors. The resulting language structures are a mix of regular syntactic and morphological ...
  • From hypothesis testing of quantum channels to secret sharing 

    Salek Shishavan, Farzin (Universitat Politècnica de Catalunya, 2020-12-14)
    Doctoral thesis
    Open Access
    The present thesis has three major thrusts: the first thrust presents a broad investigation of asymptotic binary hypothesis testing, when each hypothesis represents asymptotically many independent instances of a quantum ...
  • Design and performance analysis of advanced GNSS-R instruments back-end 

    Pascual Biosca, Daniel (Universitat Politècnica de Catalunya, 2020-12-21)
    Doctoral thesis
    Open Access
    GNSS reflectometry (GNSS-R) is a set of techniques that uses the reflected GNSS signals over the Earth’s surface as opportunity signals for remote sensing applications. In 1993, the European Space Agency (ESA) suggested ...
  • Design and implementation of an SDR-based multi-frequency ground-based SAR system 

    Amézaga Sarries, Adrià (Universitat Politècnica de Catalunya, 2020-11-25)
    Doctoral thesis
    Open Access
    Synthetic Aperture Radar (SAR) has proven a valuable tool in the monitoring of the Earth, either at a global or local scales. SAR is a coherent radar system able to image extended areas with high resolution, and finds ...
  • DSP-based CW lidars for clouds and aerosol 

    Ardanuy Della, Antoni (Universitat Politècnica de Catalunya, 2020-12-14)
    Doctoral thesis
    Open Access
    This thesis aims at exploring the limits of low peak-power, low-cost, all-semiconductor, compact lidars (laser radars) for range-resolved remote sensing of atmospheric aerosols and clouds. The systems investigated are based ...
  • Parallel scalability of face detection in heterogeneous multithreaded architectures 

    Oro García, David (Universitat Politècnica de Catalunya, 2020-11-17)
    Doctoral thesis
    Open Access
    Recently, facial recognition systems have become extremely popular and deployments of this technology are now ubiquitous. Applications ranging from access control to automated surveillance of video feeds rely on facial ...
  • Advanced signal processing techniques for robust state estimation applications in smart grids 

    Tsitsimelis, Achilleas (Universitat Politècnica de Catalunya, 2020-10-14)
    Doctoral thesis
    Open Access
    Since their inception, more than one century ago, electrical grids have played the role of a critical infrastructure. During the majority of this time, power systems have not faced radical changes. In contrast, over the ...
  • Learning to extract features for 2D – 3D multimodal registration 

    Pujol Miró, Alba (Universitat Politècnica de Catalunya, 2020-09-18)
    Doctoral thesis
    Open Access
    The ability to capture depth information form an scene has greatly increased in the recent years. 3D sensors, traditionally high cost and low resolution sensors, are being democratized and 3D scans of indoor and outdoor ...
  • Spatial modulation schemes and modem architectures for millimeter wave radio systems 

    Raafat, Ahmed (Universitat Politècnica de Catalunya, 2020-07-22)
    Doctoral thesis
    Open Access
    The rapid growth of wireless industry opens the door to several use cases such as internet of things and device-to-device communications, which require boosting the reliability and the spectral efficiency of the wireless ...

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