Now showing items 1-7 of 7

  • Analysis of the capability of C-band fully polarimetric SAR data to monitor snowed environments 

    Zhan, Yu (Universitat Politècnica de Catalunya, 2013-12-20)
    Master thesis
    Open Access
    [ANGLÈS] This study focuses on snow cover monitoring based on C-Band fully Polarimetric Synthetic Aperture Radar (PolSAR) data. Due to the lack of polarimetric sensors, most of the previous studies have been based on single ...
  • A performance evaluation of SAR-GMTI missions for maritime applications 

    Makhoul Varona, Eduardo; Broquetas Ibars, Antoni; Ruiz Rodon, Josep; Zhan, Yu; Ceba Vega, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2015-05-01)
    Article
    Open Access
    This paper proposes a new optimized multichannel synthetic aperture radar (SAR) configuration, based on receiving antennas with nonuniformly displaced phase centers, intended for ground moving target indication (GMTI) ...
  • Approximation of face images by analytical model 

    Zhan, Yu (Universitat Politècnica de Catalunya / École polytechnique fédérale de Lausanne, 2012-02)
    Master thesis (pre-Bologna period)
    Open Access
    Covenantee:  École polytechnique fédérale de Lausanne
    English: in this thesis, we address the problem of learning a face manifold model from an input data, consisting of 2D face images such that the input images can be approximated well using the learned manifold. We compute ...
  • Estimation of snow pack characteristics by means of polarimetric SAR data 

    Reppucci, Antonio; Banque, Xavier; López Martínez, Carlos; Zhan, Yu; Alonso González, Alberto (SPIE, 2012)
    Conference report
    Restricted access - publisher's policy
    Characterization of the snow-pack is fundamental for several applications in hydrology, such as modelling and forecasting of snow melt runoff, water resource management and risk analysis. Thanks to its night/day capabilities ...
  • Fast simulation performance evaluation of spaceborne SAR-GMTI missions for maritime applications 

    Makhoul Varona, Eduardo; Zhan, Yu; Ceba Vega, Francisco; Broquetas Ibars, Antoni; Beaton, Alasdhair; Letterio, Federico; Tonetti, Stefania; Barbarossa, Sergio; di Lorenzo, Paolo; Maffei, Marco (VDE Conference Publications, 2014)
    Conference report
    Restricted access - publisher's policy
    This paper presents a flexible simulator for Ground Moving Target Indication (GMTI) in the frame of spaceborne Synthetic Aperture Radar (SAR) over maritime scenarios. The simulation tool provides GMTI performance metric ...
  • Modeling fast boat motion impact on satellite SAR MTI systems 

    Ceba Vega, Francisco; Makhoul Varona, Eduardo; Broquetas Ibars, Antoni; Zhan, Yu; Beaton, Alasdhair (2015-10-01)
    Article
    Open Access
    This letter analyzes the problems of imaging small and fast boats with synthetic aperture radar (SAR), which may experience severe defocusing and/or smearing. This situation is encountered, inter alia, in ocean traffic ...
  • Sea clutter statistical characterization using TerraSAR-X data 

    Makhoul Varona, Eduardo; Zhan, Yu; Broquetas Ibars, Antoni; Ruiz Rodon, Josep; Baumgartner, Stefan (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    The paper presents a preliminary statistical evaluation of the sea clutter returns imaged by a spaceborne synthetic aperture radar (SAR) mission as TerraSAR-X. Two polarimetric data takes, Dual-polarized (Dual-Pol) and ...