Ara es mostren els items 21-40 de 146

  • Ascending-descending orbit combination SAR interferometry assessment 

    Carrasco, D; Díaz, J; Broquetas Ibars, Antoni; Arbiol, Roman; CASTILLO, M; Palà, V (ESA Publications Division, 1997)
    Text en actes de congrés
    Accés obert
    Ascending-descending orbit combination for DEM generation is very promising technique which can be used to fill in ome gaps in the DEMs caused by the geometric deformations or SAR images. The benefits from the combination ...
  • Assessment and estimation of the RVoG model in polarimetric SAR interferometry 

    López Martínez, Carlos; Alonso González, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2014-06-01)
    Article
    Accés restringit per política de l'editorial
    This paper investigates the validity of the random-volume-over-ground (RVoG) scattering model assumption for forest scattering on polarimetric interferometric synthetic aperture radar (PolInSAR) data. The model makes some ...
  • Atmosphere characterisation with SAR interferometry 

    Moyano Sánchez, Gorka (Universitat Politècnica de Catalunya, 2009-07)
    Projecte Final de Màster Oficial
    Accés obert
    The contribution of the atmosphere in SAR interferometry is not completely known. Therefore, the goal of the project is to characterise the atmosphere, i.e., to study the way it relates to interferograms. The analysis ...
  • Atmospheric phase screen compensation in ground-based sar with a multiple-regression model over mountainous regions 

    Iglesias González, Rubén; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; Mallorquí Franquet, Jordi Joan; López Martínez, Carlos; Gili Ripoll, José Antonio; Corominas Dulcet, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2014-05-01)
    Article
    Accés restringit per política de l'editorial
    In this paper, a new model-based technique for the compensation of severe height-dependent atmospheric artifacts, using ground-based synthetic aperture radar (SAR) data over mountainous regions, is proposed. The method ...
  • Back and forward bistatic interferometry 

    Duque Biarge, Sergio; López Dekker, Francisco J.; Mallorquí Franquet, Jordi Joan; Merlano Duncan, Juan Carlos (2008)
    Text en actes de congrés
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    This paper characterizes the interferometric phase for a fixedreceiver bistatic SAR system. Also, the expressions for the interferometric phase and image resolution cell are summarized. It will be distinguished between ...
  • Back Focal Plane Interferometry for Holographic Optical Traps 

    Martínez Llinàs, Jade (Universitat Politècnica de Catalunya, 2011-03-10)
    Projecte Final de Màster Oficial
    Accés obert
    English: Since its invention in 1986, optical trapping as a tool to manipulate microparticles non-invasively has found many applications in physics and biology. Force measurement on biomaterials is a potential application ...
  • Baseline redundancy and radiometric sensitivity: a critical review 

    Bará Temes, Francisco Javier; Camps Carmona, Adriano José; Torres Torres, Francisco; Corbella Sanahuja, Ignasi (European Spatial Agengy (ESA), 1995)
    Text en actes de congrés
    Accés obert
    When computing the radiometric resolution of an interferometric radiometer the correlation among the errors of different baselines is usually assumed negligible. ln this way: a) the radiometric sensitivity turns out to be ...
  • Calibration procedures in 2-D large interferometric radiometers study applied to the MIRAS/SMOS instrument 

    Torres Torres, Francisco; Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Bará Temes, Francisco Javier; Vall-Llossera Ferran, Mercedes Magdalena; Duffo Ubeda, Núria (2000)
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  • Coherence estimation in synthetic aperture radar data based on speckle noise modeling 

    López Martínez, Carlos; Pottier, Eric (Optical Society of America, 2007-02-28)
    Article
    Accés obert
    In the past we proposed a multidimensional speckle noise model to which we now include systematic phase variation effects. This extension makes it possible to define what is believed to be a novel coherence model able to ...
  • Comparative analyses of multi-frequency PSI ground deformation measurements 

    Sabater Cifuentes, José Raúl (Universitat Politècnica de Catalunya, 2012-03-29)
    Projecte/Treball Final de Carrera
    Accés restringit per decisió de l'autor
    [ANGLÈS] In recent years many new developments have been made in the field of SAR image analysis. The diversity of available SAR imagery allows a wider range of applications to be covered in the domain of risk management ...
  • Comparison between differential SAR interferometry and ground measurements data in the displacement monitoring of the earth-dam of Conza della Campania (Italy) 

    Di Martire, Diego; Iglesias González, Rubén; Monells Miralles, Daniel; Centolanza, Giuseppe; Sica, Stefania; Ramondini, Massimo; Pagano, Luca; Mallorquí Franquet, Jordi Joan; Calcaterra, Domenico (2014-05-25)
    Article
    Accés restringit per política de l'editorial
    This paper presents the application of Differential Synthetic Aperture Radar (SAR) interferometry (DInSAR) algorithms for the precise monitoring of earth dams ground deformation. The test site selected for this study is ...
  • Comparison of GNSS-R processing techniques for spaceborne ocean altimetry 

    Martín Alemany, Francisco; d'Addio, Salvatore; Camps Carmona, Adriano José; Martín Neira, Manuel; Hyuk, Park; Pascual Biosca, Daniel (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Earth-reflected Global Navigation Satellite System (GNSS) have become an attractive tool to be employed in low-Earth-orbit spaceborne missions, for applications such as ocean mesoscale altimetry and scatterometry. For such ...
  • Comparison of GPS L1 and Galileo E1 signals for GNSS-R ocean altimetry 

    Pascual Biosca, Daniel; Hyuk, Park; Camps Carmona, Adriano José; Alonso Arroyo, Alberto; Onrubia Ibáñez, Raúl (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In the last years, the GPS signals have been validated as opportunity signals in a wide range of reflectometry-based remote sensing applications for sea, land or ice scenarios. Recently, the first Galileo satellites have ...
  • Comparison of topography- and aperture-dependent motion compensation algorithms for airborne SAR 

    Prats Iraola, Pau; Câmara de Macedo, Karlus A.; Reigber, Andreas; Scheiber, Rolf; Mallorquí Franquet, Jordi Joan (IEEE, 2007-07-31)
    Article
    Accés obert
    This letter presents a comparison between three Fourier-based motion compensation (MoCo) algorithms for airborne synthetic aperture radar (SAR) systems. These algorithms circumvent the limitations of conventional MoCo, ...
  • Control del asentamiento de los diques este y sur del Puerto de Barcelona mediante datos InSAR 

    Martínez Benjamín, Juan José; Pros Llavador, Francesc; González López, Silvia (2013)
    Text en actes de congrés
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    [CASTELLÀ] En este artículo se estudia la viabilidad del uso de InSAR en el control del asentamiento de los diques de reciente construcción en el Puerto de Barcelona. El análisis se realizó a partir de datos obtenidos ...
  • Cross-talk statistics and impact in interferometric GNSS-R 

    Pascual Biosca, Daniel; Hyuk, Park; Onrubia Ibáñez, Raúl; Alonso Arroyo, Alberto; Querol Borràs, Jorge; Camps Carmona, Adriano José (2016-06-23)
    Article
    Accés obert
    This paper presents a statistical analysis of the crosstalk phenomenon in interferometric Global Navigation Satellite Systems Reflectometry (iGNSS-R). Crosstalk occurs when the Delay-Doppler Map (DDM) of a tracked satellite ...
  • Dealing with speckle effects in self-mixing interferometry measurements 

    Atashkhooei, Reza; Royo Royo, Santiago; Azcona Guerrero, Francisco Javier (2013-05)
    Article
    Accés restringit per política de l'editorial
  • Denormalization of visibilities for in-orbit calibration of interferometric radiometers 

    Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Beraza Robledano, Santiago; Martín Neira, Manuel; Gutiérrez, C. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-10-31)
    Article
    Accés obert
    This paper reviews the relative calibration of an interferometric radiometer taking into account the experimental results of the first batch of receivers developed in the frame of the European Space Agency's Soil Moisture ...
  • Design of a geosynchronous SAR system for water-vapour maps and deformation estimation 

    Monti Guarnieri, Andrea; Perletta, Luca; Rocca, Fabio; Scapin, Diego; Tebaldini, Stefano; Broquetas Ibars, Antoni; Ruiz Rodon, Josep (European Space Agency (ESA), 2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this paper, we propose a geosynchronous SAR concept that makes use of dual frequencies to achieve WIDE and SPOT coverage, aiming at continuous monitoring of deformation and generation of ...
  • Detección y estimación de velocidad de objetivos móviles mediante radares de apertura sintética con configuración de canal dual (dual channel SAR) 

    Domínguez Hunger, Cristian (Universitat Politècnica de Catalunya, 2012-02-16)
    Projecte/Treball Final de Carrera
    Accés obert
    English: Synthetic Aperture Radars (SAR) provide high resolution images, but they were not initially designed to detect moving targets. However, in the last decade, the interest in remote sensing capabilities provided by ...