Now showing items 172-183 of 183

  • Target spinor calibration (TSC) for polarimetric radar cross-section measurements 

    Fabregas Canovas, Francisco Javier; Romeu Robert, Jordi; Broquetas Ibars, Antoni; Jofre Roca, Lluís (IEE-INST ELEC ENG, 1995-09-01)
    Article
    Open Access
    A new polarimetric calibration method is proposed based on scattering matrix decomposition, via Pauli matrices. This scheme operates with the Pauli target vectors instead of the scattering matrix. The base elements of the ...
  • Temporal PolSAR image series exploitation with binary partition trees 

    Alonso González, Alberto; López Martínez, Carlos; Salembier Clairon, Philippe Jean (IEEE, 2012)
    Conference report
    Restricted access - publisher's policy
    In this paper, the processing of temporal PolSAR image series is addressed through a region-based and multi-scale data representation, the Binary Partition Tree (BPT). This structure contains useful information related ...
  • Técnicas de desenrollado robusto y geocodificación para la obtención de modelos digitales de elevación (DEM) 

    Broquetas Ibars, Antoni (Unión Científica Internacional de Radio (URSI), 2000)
    Conference report
    Open Access
    In this paper we present improved techniques of unwrapping and geocoding to obtain Digital Elevation Models (DEM). These techniques have been developed in the Teoria del Senyal i Comunicacions (TSC) department. Some results ...
  • Técnicas de detección adaptativa con tasa de falsa alarma constante 

    Elias Fusté, Antonio; Puga Antequera, Jordi (1989)
    Article
    Open Access
    Radar detection procedures involve the comparison of the received signal amplitud to a threshold. In order to obtain a constant false alarm rate (CFAR), an adaptative threshold must be applied reflecting the local clutter ...
  • The polarimetric ratio filter applied to polinsar images 

    Foucher, Samuel; López Martínez, Carlos; Charbonneau, François (IEEE, 2012)
    Conference report
    Restricted access - publisher's policy
    We are proposing recursive filter for the filtering of Single Look Complex PolInSAR data. This recursive filter allows the iterative refinement of a coarse multilook estimate by reintroducing details that have been ...
  • The processing of hexagonally sampled signals with standard rectangular techniques: application to 2D large aperture synthesis interferometric radiometers 

    Camps Carmona, Adriano José; Bará Temes, Francisco Javier; Corbella Sanahuja, Ignasi; Torres Torres, Francisco (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-01-31)
    Article
    Open Access
    In Earth observation programs there is a need of passive low frequency (L-band) measurements to monitor soil moisture and ocean salinity with high spatial resolution 10-20 km, a radiometric resolution of 1 K and a revisit ...
  • Topography dependent motion compensation for repeat-pass interferometric SAR systems 

    Prats Iraola, Pau; Reigber, Andreas; Mallorquí Franquet, Jordi Joan (IEEE, 2005-04-30)
    Article
    Open Access
    This letter presents a new motion compensation algorithm to process airborne interferometric repeat-pass synthetic aperture radar (SAR) data. It accommodates topography variations during SAR data processing, using an ...
  • Transición guía de onda - línea microstrip en banda W 

    Mata Roca, Salvador (Universitat Politècnica de Catalunya, 2011-11-17)
    Master thesis (pre-Bologna period)
    Open Access
    English: Design and implement a transition back-to-back W-band. Designing a transition back-to-back for unencapsulated active devices.
  • UWB for medical applications 

    Rodríguez Serra, Guillermo (Universitat Politècnica de Catalunya, 2015-10)
    Bachelor thesis
    Open Access
    The respiratory frequency monitoring is an important indicator to the medical field. Also, the need of sensor system solutions for home monitoring is growing as the life expectancy of the world population is increasing. ...
  • Validation of a sea surface model for simulations of dynamic maritime SAR images 

    Yam Ontiveros, Luis Eduardo; Mallorquí Franquet, Jordi Joan; Rius Casals, Juan Manuel (IEEE, 2012)
    Conference lecture
    Restricted access - publisher's policy
    Controllable maritime scenarios have become a central issue in the research of new applications of SAR imaging to vessel monitoring systems. Numerical tools such as GRECOSAR, a SAR simulator of complex targets, are able ...
  • Variable local weight filtering for PolSAR data speckle noise reduction 

    Alonso González, Alberto; López Martínez, Carlos; Salembier Clairon, Philippe Jean (IEEE, 2012)
    Conference report
    Restricted access - publisher's policy
    This paper presents a Polarimetric SAR data speckle filtering technique, based on a combined filtering in the spatial and polarimetric domains. It is based on a bilateral filtering employing distance measures over these ...
  • Wavelet Transform-Based Interferometric SAR Coherence Estimator 

    López Martínez, Carlos; Fabregas Canovas, Francisco Javier; Pottier, Eric (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-12-31)
    Article
    Open Access
    A novel method to estimate interferometric coherence in synthetic aperture radar interferometry is proposed. It is demonstrated that this approach is not affected by the terrain topography, contrary to multilook techniques. ...