Now showing items 41-60 of 183

  • 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)
    Conference report
    Restricted access - publisher's policy
    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)
    Conference report
    Restricted access - publisher's policy
    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
    Open Access
    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)
    Master thesis
    Open Access
    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)
    Conference report
    Restricted access - publisher's policy
    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)
    Conference report
    Open Access
    [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)
    Master thesis
    Open Access
    Covenantee:  Institut Supérieur de l'Aéronautique et de l'Espace / National Aeronautics and Space Administration. 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
    Restricted access - publisher's policy
  • 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
    Open Access
    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
    Restricted access - publisher's policy
  • Deformation measurement of an Experimental slab using gb-sar Analysis and interpretation 

    Aydindag, Ebru (Universitat Politècnica de Catalunya, 2018-05-24)
    Master thesis
    Restricted access - author's decision
    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 ...
  • 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
    Open Access
    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)
    Conference report
    Restricted access - publisher's policy
    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)
    Master thesis (pre-Bologna period)
    Open Access
    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 ...
  • Development of a scalable, point-of-care and label free microarray platform for rapid detection of sepsis 

    Sendra Garcia, Joan (Universitat Politècnica de Catalunya, 2015-06-29)
    Bachelor thesis
    Restricted access - confidentiality agreement
  • Differential self-mixing interferometry for micro-cantilever motion sensing 

    Azcona Guerrero, Francisco Javier; Jha, Ajit; Yáñez, Carlos; Royo Royo, Santiago (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2015)
    Conference report
    Restricted access - publisher's policy
    Force sensing is a common practice used for the characterization of matter properties and in particular of bio-materials. Different optical methods have been used in the past to allow high resolution force measurements ...
  • Diffuse reflectance spectroscopy characterization of molecular absorption via graphene based photodetectors 

    Evans, Michael (Universitat Politècnica de Catalunya, 2018-09)
    Master thesis
    60 months embargo
    This Master dissertation explores diffuse reflection spectroscopy as a viable tool for analytical chemistry, both quantitatively and qualitatively. In-vitro optical phantoms are created to mimic the turbid diffuse environments ...
  • Digital correlation for geosar mission calibration 

    Carreño Megias, Xavier (Universitat Politècnica de Catalunya, 2019-06)
    Master thesis
    Restricted access - confidentiality agreement
  • DInSAR pixel selection based on sublook spectral correlation along time 

    Iglesias González, Rubén; Mallorquí Franquet, Jordi Joan; Lopez Dekker, Paco (Institute of Electrical and Electronics Engineers (IEEE), 2014-07-01)
    Article
    Restricted access - publisher's policy
    The reliability of any final differential synthetic aperture radar (SAR) interferometry (DInSAR) product is directly related to the phase quality of the interferograms involved in the processing. Performing an appropriate ...
  • DInSAR processing with polarimetric data 

    Monells Miralles, Daniel (Universitat Politècnica de Catalunya, 2011-09-09)
    Master thesis
    Open Access
    English: Study of the uses of orbital polarimetric data for the survey of terrain subsidence through SAR Differential interferometry (DInSAR).