Enviaments recents

  • Region-based particle filter leveraged with a hierarchical co-clustering 

    Varas González, David (Universitat Politècnica de Catalunya, 2016-11-14)
    Tesi
    Accés obert
    In this thesis, we exploit the hierarchical information associated with images to tackle two fundamental problems of computer vision: video object segmentation and video segmentation. In the first part of the thesis, we ...
  • Coordination strategies for interference management in MIMO dense cellular networks 

    Lagén Morancho, Sandra (Universitat Politècnica de Catalunya, 2016-12-21)
    Tesi
    Accés obert
    The envisioned rapid and exponential increase of wireless data traffic demand in the next years imposes rethinking current cellular networks due to the available spectrum scarcity. In this regard, 3 main drivers are ...
  • Energy-aware service provisioning in P2P-assisted cloud ecosystems 

    Sharifi, Leila (Universitat Politècnica de Catalunya, 2016-11-23)
    Tesi
    Accés obert
    Energy has been emerged as a first-class computing resource in modern systems. The trend has primarily led to the strong focus on reducing the energy consumption of data centers, coupled with the growing awareness of the ...
  • Shrinkage corrections of sample linear estimators in the small sample size regime 

    Serra Puertas, Jorge (Universitat Politècnica de Catalunya, 2016-11-11)
    Tesi
    Accés obert
    We are living in a data deluge era where the dimensionality of the data gathered by inexpensive sensors is growing at a fast pace, whereas the availability of independent samples of the observed data is limited. Thus, ...
  • Earth remote sensing with SMOS, Aquarius and SMAP missions 

    Pablos Hernández, Miriam (Universitat Politècnica de Catalunya, 2016-10-03)
    Tesi
    Accés obert
    The first three of a series of new generation satellites operating at L-band microwave frequencies have been launch in the last decade. L-band is particularly sensitive to the presence of water content in the scene under ...
  • Self organisation for 4G/5G networks 

    Moysen, Jessica (Universitat Politècnica de Catalunya, 2016-10-07)
    Tesi
    Accés obert
    Nowadays, the rapid growth of mobile communications is changing the world towards a fully connected society. Current 4G networks account for almost half of total mobile traffic, and in the forthcoming years, the overall ...
  • Contributions to land, sea, and sea ice remote sensing using GNSS-reflectometry 

    Alonso Arroyo, Alberto (Universitat Politècnica de Catalunya, 2016-11-10)
    Tesi
    Accés obert
    This PhD thesis researches the use of passive remote sensing techniques using signals transmitted from the navigation satellites (GNSS) in order to retrieve different geophysical parameters. The thesis consists of two ...
  • Simulation, detection, and classification of vessels in maritime SAR images 

    Yam Ontiveros, Luis Eduardo (Universitat Politècnica de Catalunya, 2016-09-21)
    Tesi
    Accés obert
    Over the last decades, environmental and socio-economic factors have generated interest on the observation of the ocean. Thus, the monitoring of maritime human activity has become crucial for the protection of the marine ...
  • Ocean surface currents reconstruction from microwave radiometers measurements 

    González Haro, Cristina (Universitat Politècnica de Catalunya, 2015-05-22)
    Tesi
    Accés obert
    Ocean currents are a key component to understanding many oceanic and climatic phenomena and knowledge of them is crucial for both navigation and operational applications. Therefore, a key problem in oceanography is the ...
  • Fractal antennas 

    Puente Baliarda, Carles (Universitat Politècnica de Catalunya, 1997-06-30)
    Tesi
    Accés obert
    Las antenas son dispositivos esencialmente de banda estrecha; es decir, su comportamiento es altamente dependiente de la frecuencia de operación. La relación entre la longitud de onda de trabajo y el tamaño de la antena ...

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