Exploració per tema "Interferometry"

Ara es mostren els items 46-65 de 238

    • 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)
      Text en actes de congrés
      Accés obert

    • Calibration techniques of interferometric microwave receivers 

      Ortega Corral, Antonio (Universitat Politècnica de Catalunya, 2017-10-18)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      An interferometer for orbital determination receives a satellite signal at different spatial points using antennas that form a baseline. Those received signals have a different phase which is related to the distance between ...

    • Characterization of a precise orbit determination interferometer 

      Traver Tarrés, Ignasi (Universitat Politècnica de Catalunya, 2018-02-06)
      Treball Final de Grau
      Accés obert
      This project addresses the characterization of an interferometer used for satellite orbit determination. It is included in the context of the assemblage of a Geostationary Synthetic Aperture Radar (GeoSAR) for Earth and ...

    • 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 InSAR atmospheric phase screen correction with Global Atmospheric Models (GAM) 

      Hu, Zheng; Mallorquí Franquet, Jordi Joan (VDE Conference Publications, 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Variations of atmospheric conditions cause Atmospheric Phase Screen (APS) in Interferometric Synthetic Aperture Radar (InSAR), which affects accuracy and reliability of its applications. Recent studies reveal that empirical ...

    • 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, ...

    • Complex domain analysis of random volume over ground model for forest height 

      Jorge Ruiz, Jorge (Universitat Politècnica de Catalunya, 2019-05-22)
      Projecte Final de Màster Oficial
      Accés obert
      This work focuses on the analysis of X-band Interferometric Synthetic Aperture Radar (InSAR) satellite acquisitions over forested areas in Estonia with the main goal of estimating forest tree height. The objective is to ...

    • Complex light-assisted optical metrology techniques 

      Rosales Guzmán, Carmelo; Belmonte Molina, Aniceto; Pérez Torres, Juan (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The on-demand tailoring of the properties of light, such as phase, polarization or spatial shape, has completely changed the landscape of photonic-based applications. In this way, complex light fields have become an ...

    • 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
      Accés obert
      [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 ...

    • Control system of the balloon experimental twin telescope for infrared interferometry 

      Casalprim Torres, Marc (Universitat Politècnica de Catalunya, 2017-09)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Institut Supérieur de l'Aéronautique et de l'Espace / Goddard Space Flight Center
      The Balloon Experimental Twin Telescope for Infrared Interferometry (BETTII) is a far infrared telescope on a balloon-based platform that will validate the interferometry technique for future space telescopes. It is one ...

    • Cost-effective laser feedback sensor for nanometric scale acoustic perturbations 

      Jha, Ajit; Azcona Guerrero, Francisco Javier; Royo Royo, Santiago (2018-07-01)
      Article
      Accés restringit per política de l'editorial

    • 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 ...

    • Current modulation induced stability in laser diode under high optical feedback strength 

      Jha, Ajit; Kumar Shah, Manoj; Jha, Sachin; Reddy Cenkeramaddi, Linga; Royo Royo, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
      Article
      Accés obert
      The back-reflection of emitted laser beam (optical feedback, also know as selfmixing) from various external interfaces are sufficient to cause instability, and prohibiting its use in various fields such as communication, ...

    • 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

    • Deformation measurement of an Experimental slab using gb-sar Analysis and interpretation 

      Aydindag, Ebru (Universitat Politècnica de Catalunya, 2018-05-24)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Aquest treball consisteix en l'anàlisi i interpretació de mesures de deformació amb interferometria Radar (GBSAR) dutes a terme durant un assaig a llarg termini a escala real. L'element monitoritzat és una llosa experimental ...

    • Delta kick cooling for cold atom interferometry and its application in space missions 

      Augst, Nadja (Universitat Politècnica de Catalunya, 2020-09-08)
      Projecte Final de Màster Oficial
      Accés obert
      Delta kick cooling (DKC) gives control over the free expansion of Bose-Einstein-Condensates for the purpose of atom interferometry. Recent projects and future proposals on how to apply DKC for cold atom interferometry in ...