Now showing items 1-20 of 121

  • A Ka-band Radar Interferometer: development and testing 

    Galobart Tor, Bruno (Universitat Politècnica de Catalunya / University of Massachusetts at Amherst, 2013-07-11)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] Radar interferometry is a remote sensing technique that consists in transmitting a signal and measuring the phase difference of the reflected signal between two antennas separated by a baseline. This phase difference ...
  • A maximum likelihood analysis of the RVoG model for forestry studies in polarimetric SAR interferometry 

    López Martínez, Carlos; Alonso González, Alberto (European Space Agency (ESA), 2013)
    Conference report
    Restricted access - publisher's policy
    This work analyses the validity of the RVoG model as- sumption in case of PolInSAR data in forestry analy- sis. In order to assure that the interferometric coherence describes a line, as imposed by the RVoG model, ...
  • A nanometric displacement measurement system using differential optical feedback interferometry 

    Azcona Guerrero, Francisco Javier; Atashkhooei, Reza; Royo Royo, Santiago; Méndez Astudillo, Jorge; Jha, Ajit (2013-11-01)
    Article
    Restricted access - publisher's policy
  • A new calibration technique for interferometric radiometers 

    Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Camps Carmona, Adriano José; Bará Temes, Francisco Javier (1998)
    Conference report
    Open Access
    This paper presents a new method for receiver calibration of interferometric radiometers. It is based on the distributed noise injection mechanism and it consists of fully calibrating the baseline error terms of the central ...
  • A new method for the acquisition of arterial pulse wave using self-mixing interferometry 

    Arasanz Tena, Andrés; Azcona Guerrero, Francisco Javier; Royo Royo, Santiago; Jha, Ajit; Pladellorens Mallofré, Josep (2014-11-01)
    Article
    Open Access
    In this paper we present a technique based on self-mixing interferometry as a method for the acquisition and reconstruction of the arterial pulse wave. A modification of the classic fringe counting reconstruction algorithm ...
  • A performance evaluation of SAR-GMTI missions for maritime applications 

    Makhoul Varona, Eduardo; Broquetas Ibars, Antoni; Ruiz Rodon, Josep; Zhan, Yu; Ceba Vega, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2015-05-01)
    Article
    Open Access
    This paper proposes a new optimized multichannel synthetic aperture radar (SAR) configuration, based on receiving antennas with nonuniformly displaced phase centers, intended for ground moving target indication (GMTI) ...
  • Adaptive autofocus technique for speckle control in optical feedback interferometry 

    Atashkhooei, Reza; Royo Royo, Santiago; Azcona Guerrero, Francisco Javier (2014-09-01)
    Article
    Restricted access - publisher's policy
    An adaptive autofocus technique for the control of speckle effect in optical feedback interferometry (OFI) is discussed. The beam spot size effect over the OFI signal is presented, justifying the proposed approach. An ...
  • Adaptive optics without wave-front sensor using the APHEFIS (Adaptive Optics by Phase Estimation from Focal Intensity Speckles) algorithm 

    Muñoz Fuentes, Manuel (Universitat Politècnica de Catalunya, 2012-07-19)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] Compensation of the distorsions introduced to the optical wavefronts by the atmosphere using the algorithm APHEFIS, developed by Dr. Dirk Giggenbach.
  • Advances in the MIR instrument: integration, control subsystem and analysis of the flight dynamics for beamsteering purposes 

    Onrubia Ibáñez, Raúl; Garrucho, Lidia; Pascual Biosca, Daniel; Hyuk, Park; Querol Borràs, Jorge; Alonso Arroyo, Alberto; Camps Carmona, Adriano José (2015)
    Conference lecture
    Restricted access - publisher's policy
    The MIR (Microwave Interferometric Reflectometer) is a new dual frequency Global Navigation Satellite Systems Re- flectometry (GNSS-R) instrument that implements conventional and interferometric reflectometry, both with ...
  • Analisys of noise-injection networks for interferometric-radiometer calibration 

    Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Torres Torres, Francisco; Bará Temes, Francisco Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2000-04-30)
    Article
    Open Access
    The spatial resolution of current space-borne Earth observation radiometers is limited by the physical antenna aperture. This is especially critical at L-band, which exhibits high sensitivity to soil moisture and sea surface ...
  • Analysis and control of speckle effects in self-mixing interferometry 

    Atashkhooei, Reza; Royo Royo, Santiago; Azcona Guerrero, Francisco Javier; Zabit, U (2011)
    Conference report
    Restricted access - publisher's policy
  • Analysis and mitigation of the reconstruction error in interferometric radiometry 

    Díez García, Raul (Universitat Politècnica de Catalunya, 2014-12-05)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] The European Space Agency (ESA) Soil Moisture and Ocean Salinity mission (SMOS) provides continuous global maps of soil moisture and ocean surface salinity. Its payload MIRAS (Microwave Imaging Radiometer with ...
  • Analysis, design and implementation of a compact interferometer for geostationary orbital tracking 

    Martin Fuster, Roger (Universitat Politècnica de Catalunya, 2016-05-11)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    Future geostationary radar systems will require the satellite orbit modeling with precisions in the order of the radar wavelength. Using interferometric techniques it is possible to determine satellite angular observables ...
  • Anàlisi dels moviments superficials de l’àrea de Súria per mitjà d’Interferometria Diferencial SAR (DINSAR) 

    Yerro Colom, Alba (Universitat Politècnica de Catalunya, 2008-12-12)
    Minor thesis
    Open Access
    En aquesta tesina es realitza un estudi de moviments superficials mitjançant la tècnica d’interferometria radar (DInSAR) a la zona del poble de Súria. És una àrea on la possibilitat d’observar deformacions del terreny ...
  • Anàlisis de les interferències de la xarxa LTE sobre el servei de radiodifusió de TDT 

    Martinez Pla, Joan (Universitat Politècnica de Catalunya, 2012-07)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] Co-channel interference analysis of an implementation of an LTE network broadcasting on the DTT network of Abertis Telecom, mainly in the channels 60 and 59.
  • Análisis de datos InSAR en el estudio de subsidencia de los diques este y sur del puerto de Barcelona 

    González López, Silvia (Universitat Politècnica de Catalunya, 2012-10)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    En este proyecto se realiza un análisis de los datos de asentamiento de los Diques Este y Sur del Puerto de Barcelona durante los años 2009 y 2010. Estos datos han sido obtenidos mediante una técnica avanzada de ...
  • Análisis e integración de un radiómetro de apertura sintética 

    Canales Contador, Francisco José (Universitat Politècnica de Catalunya, 2009-06-10)
    Master thesis (pre-Bologna period)
    Open Access
    En las últimas décadas, ha habido un creciente interés en la determinación de algunos parámetros como la salinidad y altura de la superficie marina (SSS y SSH), o la humedad del suelo. Algunas de estas variables son ...
  • Aplicaciones diferenciales de la interferometría SAR 

    Carrasco, D; Esteban, D; Tena, J; López Bonillo, Francisco; Rodríguez, O; Broquetas Ibars, Antoni (1997)
    Conference report
    Open Access
    Synthetic Aperture Radar Interferometry allows the coherent combination of radar images acquired from different viewpoints. The interferogram generated by substracting their phases has got information related to the geometry ...
  • Ascending-descending orbit combination SAR interferometry assessment 

    Carrasco, D; Díaz, J; Broquetas Ibars, Antoni; Arbiol, Roman; CASTILLO, M; Palà, V (ESA Publications Division, 1997)
    Conference report
    Open Access
    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 ...
  • Atmosphere characterisation with SAR interferometry 

    Moyano Sánchez, Gorka (Universitat Politècnica de Catalunya, 2009-07)
    Master thesis
    Open Access
    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 ...