Now showing items 61-80 of 172

  • Dynamics of a Bose Einstein condensate in a ring potential 

    Pino Quintana, Hernán (Universitat Politècnica de Catalunya / Universitat Autònoma de Barcelona, 2012-09-04)
    Master thesis
    Open Access
    [ANGLÈS] We have addressed the dynamics of a repulsive interacting 87 Rb Bose Einstein condensate (BEC) in a ring potential trap. Our study has been focused in the analysis of the interference pattern that arises by the ...
  • Dynamics of matter wave solitons 

    Polo Gómez, Juan (Universitat Politècnica de Catalunya / Universitat Autònoma de Barcelona, 2012-09-04)
    Master thesis
    Open Access
    [ANGLÈS] We study the implementation of a matter wave bright soliton interferometer formed by a Gaussian potential barrier placed at the center of a harmonic trap potential. After numerically evaluating the transmission ...
  • Efecto de la corrección de la eficiencia de correlación GKJ sobre datos SMOS en la recuperación de humedad 

    Castellví Fernández, Marc (Universitat Politècnica de Catalunya, 2016-10)
    Master thesis (pre-Bologna period)
    Open Access
    Analysis of the effects of the correction GKJ on SMOS data in the retrieval process of soil moisture
  • Elaboració i anàlisi d'imatges radar desde satèl.lit 

    Villacorta Cantí, David (Universitat Politècnica de Catalunya, 2009-07-29)
    Bachelor thesis
    Open Access
  • Error propagation analysis in the processing of sar images for subsidence measuraments 

    Testolina, Paolo (Universitat Politècnica de Catalunya, 2018-07)
    Master thesis
    Open Access
    Covenantee:  Università degli Studi di Padova
    Every measurement of the physical world is affected by uncertainty, no matter how precise the available instruments are. In other words, a measure completely free of errors is not possible. Being able to quantify this ...
  • Estimacion y corrección de errores orbitales en interferometría SAR 

    Mateo Sanchez, Juan Carlos (Universitat Politècnica de Catalunya, 2017-02-09)
    Bachelor thesis
    Restricted access - confidentiality agreement
    Covenantee:  Dares Technology
  • Estimation of Azimuth Phase Undulations with Multisquint Processing in Airborne Interferometric SAR Images 

    Prats Iraola, Pau; Mallorquí Franquet, Jordi Joan (2003-06-30)
    Article
    Open Access
    This letter presents a technique to detect and correct phase errors appearing in interferometric airborne synthetic aperture radar (SAR) systems due to the lack of precision in the navigation system. The technique is ...
  • Estrategias de procesado para la maximización de puntos de medida en entornos no urbanos 

    Aguado Berga, Vicente (Universitat Politècnica de Catalunya, 2012-04)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    [ANGLÈS] Project based on the application of different processing strategies using the interferometric technique. The objective is to obtain a greater number of measuring points in non-urban areas where the temporal ...
  • Estudi de dispersió d'entorns urbans per mitjà d'imatges simulades SAR 

    Corney Planas, Irene (Universitat Politècnica de Catalunya, 2008-10-09)
    Master thesis (pre-Bologna period)
    Open Access
    En aquest projecte es realitza un estudi basat en aquest entorn de simulació per tal de reproduir les diferents situacions que es poden trobar en un escenari urbà real, tenint un control total sobre els paràmetres del ...
  • Etude par interférométrie Mach-Zehnder de la cinétique d’absorption du CO2 gazeux dans une solution d’amine industrielle 

    Alonso Quintans, David (Universitat Politècnica de Catalunya / Université Libre Bruxelles, 2011)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    Dans ce travail, nous nous intéressons à l’absorption du CO2 gazeux par absorption chimique dans une solution aqueuse contenant une amine. Ce type d’absorption est réalisée dans les procédés de capture de CO2 en postcombustion. ...
  • Evaluation of MIRAS space borne instrument performance: snap shot radiometric accuracy and its improvement by means of pixel averaging 

    Camps Carmona, Adriano José; Torres Torres, Francisco; Bará Temes, Francisco Javier; Corbella Sanahuja, Ignasi; Martín Neira, Manuel (1997)
    Conference report
    Open Access
  • Exploring optical aberrations with two experimental techniques. Applications on Ophthalmic Optics 

    Marzoa Domínguez, Antonio (Universitat Politècnica de Catalunya, 2017)
    Master thesis
    Open Access
    This work focuses on the general description of two methods for wavefront analysis: wavefront measurement by means of Shack-Hartmann (SH) wavefront sensor and Point-Diffraction Interferometry (PDI); and its potential ...
  • Extraction of vibration parameters from optical feedback interferometry signals using wavelets 

    Jha, Ajit; Azcona Guerrero, Francisco Javier; Yáñez Alvarado, Carlos René; Royo Royo, Santiago (2015-12-01)
    Article
    Open Access
    This paper proposes the use of the wavelet transform as a technique that is suited for fringe detection and analysis of optical feedback interferometry (OFI) signals, thus allowing the retrieval of extremely small physical ...
  • 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 ...
  • First Delay Doppler Maps obtained with the Microwave Inteferometric Reflectometer (MIR) 

    Pascual, Daniel; Onrubia Ibáñez, Raúl; Querol Borràs, Jorge; Alonso Arroyo, Alberto; Hyuk, Park; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    This work presents the first Delay Doppler Maps (DDMs) obtained with the Microwave Interferometric Reflectometer (MIR) airborne instrument. MIR is a GNSS Reflectometer (GNSS-R) which uses the conventional (cGNSS-R) and ...
  • Frequency-Modulated Optical Feedback Interferometry for Nanometric Scale Vibrometry 

    Jha, Ajit; Azcona Guerrero, Francisco Javier; Royo Royo, Santiago (2016-02-18)
    Article
    Open Access
    We demonstrate a novel method that makes an efficient use of laser nonlinear dynamics when subject to optical self-injection for subwavelength displacement sensing purposes. The proposed methodology combines two different ...
  • From experimental campaigns to BEC - CP34 salinity products: Tribute to the Contributions of prof. Font to the SMOS Mission 

    Camps Carmona, Adriano José; Gabarró Prats, Carolina; Vall-Llossera Ferran, Mercedes Magdalena; Blanch Boris, Sebastián; Aguasca Solé, Alberto; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Turiel, Antonio; Portabella, Marcos; Ballabrera-Poy, Joaquim; González-Gambau, Verónica; Martínez, Justino; Villarino Villarino, Ramón; Enrique, Luis; Monerris Belda, Sandra; Bosch, Xavier; Sabia, Roberto; Talone, Marco; Piles Guillem, Maria; Pablos Hernánez, Miriam; Valencia, Enric (2016-09-01)
    Article
    Open Access
    This article summarizes some of the activities in which Jordi Font, research professor and head of the Department of Physical and Technological Oceanography, Institut de Ciències del Mar (CSIC, Spanish National Research ...
  • Generació eficient d'interferogrames diferencials mitjantçant un DEM extrem 

    Monells Miralles, Daniel (Universitat Politècnica de Catalunya, 2008-12-15)
    Master thesis (pre-Bologna period)
    Open Access
    Aquest projecte està emmarcat en el camp de la interferometria, una aplicació que permet tenir informació al llarg de l’eix d’observació d’una escena. La informació d’alçada s’extreu a partir del que s’anomena interferograma, ...
  • GeoSAR Mission: Orbit Determination Techniques for a Ground-based Interferometer System 

    Fernàndez Uson, Marc (Universitat Politècnica de Catalunya, 2018-03)
    Master thesis
    Restricted access - author's decision
    The aim of Geostationary Synthetic Aperture Radar (GeoSAR) missions is to obtain daily images of events that take place over the Earth's surface. Some of them are critical to monitor (e.g. land stability control, natural ...
  • Ground-based polarimetric SAR interferometry for the monitoring of terrain displacement phenomena-part II: applications 

    Iglesias González, Rubén; Aguasca Solé, Alberto; Fabregas Canovas, Francisco Javier; Mallorquí Franquet, Jordi Joan; Monells Miralles, Daniel; López Martínez, Carlos; Pipia, Luca (2015-03-01)
    Article
    Open Access
    Urban subsidence and landslides are among the greatest hazards for people and infrastructure safety and they require an especial attention to reduce their associated risks. In this framework, ground-based synthetic aperture ...