Now showing items 1-13 of 13

    • Anomaly detection on large data flows 

      Cayuela Ràfols, Marc (Universitat Politècnica de Catalunya, 2015-02)
      Bachelor thesis
      Open Access
      [ANGLÈS] This project studies the anomaly detection problem and proposes two solution approaches for the unsupervised detection problem. These two solutions are based on the fitting of an autoregressive model and the ...
    • Compressed sensing and approximate message passing for the single-pixel camera 

      Biosca Caro, Jordi (Universitat Politècnica de Catalunya, 2018-06)
      Bachelor thesis
      Open Access
      This thesis is based on the technology of Compressed Sensing and the study of the algorithms of Approximate Message Passing for the single-pixel camera. This thesis has been developed in the institute of telecommunication ...
    • Criterios de teoría de la información en procesado adaptativo de la señal y aplicaciones 

      Sala i Álvarez, Josep (Universitat Politècnica de Catalunya, 1995-06-15)
      Doctoral thesis
      Open Access
      En esta tesis hemos querido básicamente considerar el diseño de funciones de coste para adaptación ciega en un amplio margen de aplicaciones en el ámbito de las comunicaciones digitales, tomando en consideración los ...
    • Estimació cega de canal en sistemes OFDM 

      Polbach Vinadé, Alejandro (Universitat Politècnica de Catalunya, 2012-01-25)
      Master thesis (pre-Bologna period)
      Open Access
      Anglès: This project addresses the problem of the estimation of the transmission channel using non data-aided (NDA) methods for the specific case of data transmission using OFDM (Orthogonal Frequency Division Multiplexing), ...
    • Feedback-channel and adaptative mimo coded-modulations. 

      Rey Micolau, Francesc (Universitat Politècnica de Catalunya, 2006-05-12)
      Doctoral thesis
      Open Access
      En els sistemes de comunicacions on el transmissor disposa de certa informació sobre l'estat del canal (CSI), es possible dissenyar esquemes lineals de precodificació que assignin la potència de manera òptima induint guanys ...
    • Network topology with imperfect spectral templates on graphs 

      García Ortiz, Carlos (Universitat Politècnica de Catalunya, 2018-06)
      Bachelor thesis
      Open Access
      Traditionally, when talking about the use of graphs for signal processing, its topology has always been supposed known, from which multiple techniques have been developed over the years. Nowadays, a new mentality has ...
    • Noise subspace communication: waveform optimization and interference management 

      Borràs Pino, Jordi (Universitat Politècnica de Catalunya, 2016-07-14)
      Bachelor thesis
      Open Access
      Nowadays, the increasing demand for high data-rate services increases the interest of spectral efficiency. As it is well-known, the spectrum is a limited resource. Thus, those newest techniques should exploit it efficiently. ...
    • Pilot contamination in context-aware pilot-based opportunistic communications 

      Borràs Pino, Jordi (Universitat Politècnica de Catalunya, 2018-07)
      Master thesis
      Restricted access - author's decision
      The increasing demand of high data-rate services and the unstoppable growth of communicating interfaces are two important features of next-era wireless communications. Albeit some strategies have recently arisen to deal ...
    • Prediction methods for statistical inference in graph signal processing 

      García Ortiz, Carlos (Universitat Politècnica de Catalunya, 2020-07)
      Master thesis
      Open Access
      This thesis studies the problem of inferring topology from signal graphs. For this reason, the Master's Thesis is part of the current of thought, growing in recent years, in which the structure of the network is not assumed ...
    • Sample Covariance Based Parameter Estimation For Digital Communications 

      Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2005-10-01)
      Doctoral thesis
      Open Access
      En aquesta tesi s'estudia el problema d'estimació cega de segon ordre en comunicacions digitals. En aquest camp, els símbols transmesos esdevenen paràmetres no desitjats (nuisance parameters) d'estadística no gaussiana que ...
    • SC-EXCELL model upgrade to predict Depolarization 

      Pinar Riasol, Ricard (Universitat Politècnica de Catalunya, 2014-05-02)
      Bachelor thesis
      Open Access
      Covenantee:   Politecnico di Milano
      [ANGLÈS] This TFG is about a attenuation prediction model in an Earth-space path. This model includes three new points: it takes care of the altitude of the cloud, predicts depolarization and introduces the absorption and ...
    • Signal graphs and networks 

      Grau Marina, David (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Open Access
      Due to the technologies improvement, the volume of data generated in any discipline has become massive. All this raw knowledge needs a post-processing in order to discern and identify the embedded information. Hence, it ...
    • Wideband cognitive radio: monitoring, detection and sparse noise subspace communication 

      Font Segura, Josep (Universitat Politècnica de Catalunya, 2014-07-24)
      Doctoral thesis
      Open Access
      We are surrounded by electronic devices that take advantage of wireless technologies, from our computer mice, which require little amounts of information, to our cellphones, which demand increasingly higher data rates. ...