Exploració per tema "Interferometria"

Ara es mostren els items 165-184 de 219

    • Pau-synthetic aperture: a new instrument to test potential improvements for future interferometric radiometers 

      Ramos Pérez, Isaac (Universitat Politècnica de Catalunya, 2012-02-27)
      Tesi
      Accés obert
      The Soil Moisture and Ocean Salinity (SMOS) mission is an Earth Explorer Opportunity mission from the European Space Agency (ESA). It was a direct response to the global observations of soil moisture and ocean salinity. ...

    • Performance characterization of an optical profiler through the measurement of the linearity deviations of the scanner 

      Arbide Nieto, Ander (Universitat Politècnica de Catalunya, 2018-07-06)
      Projecte Final de Màster Oficial
      Accés obert
      Nowadays the determination of the accuracy and repeatability of an optical profiler is done by performing several repetitions of a step height measurement and calculating the accuracy error (mean) and the repeatability ...

    • Permanent SAR observation of water cycle parameters on vegetated soil 

      Mas i Méndez, Mireia (Universitat Politècnica de Catalunya, 2021-07-07)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      HYDROSOIL radar continuous monitoring campaigns over agricultural fields provided relevant data to understand atmospheric conditions impact over radar backscattering and coherence results. Radar backscattering magnitude ...

    • PH-RLS: A parallel hybrid recursive least square algorithm for self-mixing interferometric laser sensor 

      Khan, Zohaib A.; Hussain, Tassadaq; Zabit, Usman; Usman, Muhammad; Ayguadé Parra, Eduard (2021-10)
      Article
      Accés obert
      The authors present the parallel-hybrid recursive least square (PH-RLS) algorithm for an accurate self-mixing interferometric laser vibration sensor coupled with an accelerometer under industrial conditions. Previously, ...

    • Phase error assessment of MIRAS/SMOS by means of redundant space calibration method 

      Dávila Faúndez, Rubén (Universitat Politècnica de Catalunya, 2011-01-12)
      Projecte/Treball Final de Carrera
      Accés obert
      Català: L'objectiu del projecte és estudiar l'error de fase de la càrrega d'SMOS, l'instrument MIRAS, desenvolupant un mètode anomenat Calibració per Espais Redundants (RSC). Aquest mètode està basat en l'ús de les mostres ...

    • Pico Cell Range Expansion toward LTE-Advanced Wireless Heterogeneous Networks 

      Joud, Mohammad (Universitat Politècnica de Catalunya, 2013-01-14)
      Projecte Final de Màster Oficial
      Accés obert
      [ANGLÈS] Deploying low power nodes within a macro cell layout, also known as heterogeneous networks (HetNets), is a promising solution to enhance the global performance of LTE mobile communication systems and particularly ...

    • Point and shoot microvibrometry for biological applications 

      Belsley, Alexandre (Universitat Politècnica de Catalunya, 2017-09-08)
      Projecte Final de Màster Oficial
      Accés obert
      The capabilities of an experimental setup combining the functions of a conventional microscope with a custom built self-mixing interferometer to characterize the contractile motion of living cells in both the transversal ...

    • Polarimetric differential SAR Interferometry with ground-based sensors 

      Pipia, Luca (Universitat Politècnica de Catalunya, 2009-09-18)
      Tesi
      Accés obert
      Las técnicas de Interferometría Diferencial se basan en la combinación de varias imágenes SAR con distinta separación temporal y permiten la recuperación de las componentes lineales y no-lineales del proceso de deformación ...

    • Polarimetric optimization of temporal sublook coherence for DInSAR applications 

      Iglesias González, Rubén; Monells Miralles, Daniel; López Martínez, Carlos; Mallorquí Franquet, Jordi Joan; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto (2015-01-01)
      Article
      Accés obert
      The application of differential synthetic aperture radar interferometry (DInSAR) techniques has been traditionally limited to the single-polarimetric case. The launch of satellites with polarimetric capabilities has triggered ...

    • Post-failure evolution analysis of a rainfall-triggered landslide by multi-temporal interferometry SAR approaches integrated with geotechnical analysis 

      Confuorto, Pierluigi; Di Martire, Diego; Centolanza, Giuseppe; Iglesias González, Rubén; Mallorquí Franquet, Jordi Joan; Novellino, Alessandro; Plank, Simon; Ramondini, Massimo; Thuro, Kurosch; Calcaterra, Domenico (2017-01-01)
      Article
      Accés obert
      Persistent Scatterers Interferometry (PSI) represents one of the most powerful techniques for Earth's surface deformation processes' monitoring, especially for long-term evolution phenomena. In this work, a dataset of 34 ...

    • Power Detector Second Order Correction Study applied to MIRAS/SMOS Mission 

      González Haro, Cristina (Universitat Politècnica de Catalunya, 2010-02)
      Projecte Final de Màster Oficial
      Accés obert

    • Practical issues on SMOS single antenna patterns 

      Wu, Lin; Durán Martínez, Israel; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Closa, Josep; Manrique, Rodrigo; Garcia, Quiterio; Oliva Balagué, Roger; Martín Neira, Manuel (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper provides a wrap-up of some of the activities undertaken by SMOS L1 team to fine tune the instrument calibration and modeling that eventually has resulted into a SMOS full-polarimetric measurement and image ...

    • Precise orbital tracking of GEOSAR missions using interferometry 

      Dominguez Figueroa, Cristian Andres (Universitat Politècnica de Catalunya, 2020-07-20)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat

    • Precision bounds in GNSS-R ocean altimetry 

      Pascual Biosca, Daniel; Camps Carmona, Adriano José; Martínez Mindeguía, Francisco; Hyuk, Park; Alonso Arroyo, Alberto; Onrubia Ibáñez, Raúl (2014-05-01)
      Article
      Accés restringit per política de l'editorial
      Global navigation satellite systems (GNSS) signals offer a promising opportunity to perform mesoscale altimetry with worldwide coverage using small satellites. However, unlike the signals used in classical altimeters, the ...

    • Procesado DInSAR a alta resolución con imágenes con diferencias de Doppler grandes 

      García Hernández, Antonio Jesús (Universitat Politècnica de Catalunya, 2011-09-29)
      Projecte/Treball Final de Carrera
      Accés obert
      English: Development of interferometric techniques by amplitude criteria in order to obtain the linear subsidence, taking into account the azimut position phase component in the estimation process, which is very relevant ...

    • Procesado interferométrico de datos SAR de sensores aerotransportados 

      Bara, M; Broquetas Ibars, Antoni (Universidade de Santiago de Compostela, Servizo de Publicaciións e Intercambio Científico, 1999)
      Text en actes de congrés
      Accés obert
      SAR Interferometry is a useful tool which allows the generation of high-precision Digital Elevation Models of the Earth surface. The paper describes an operational scheme of an interferometric processor, applicable to ...

    • Proposed satellite position determination systems and techniques for Geostationary Synthetic Aperture Radar 

      Martin Fuster, Roger; Fernández Usón, Marc; Casado Blanco, David; Broquetas Ibars, Antoni (2016)
      Article
      Accés obert
      This paper proposes two different calibration techniques for Geostationary Synthetic Aperture Radar (GEOSAR) missions requiring a high precision positioning, based on Active Radar Calibrators and Ground ...

    • PSI deformation map retrieval by means of temporal sublook coherence on reduced sets of SAR images 

      Iglesias González, Rubén; Mallorquí Franquet, Jordi Joan; Monells Miralles, Daniel; López Martínez, Carlos; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; Gili Ripoll, José Antonio; Corominas Dulcet, Jordi (2015-01-01)
      Article
      Accés obert
      Prior to the application of any persistent scatterer interferometry (PSI) technique for the monitoring of terrain displacement phenomena, an adequate pixel selection must be carried out in order to prevent the inclusion ...

    • Quality evaluation of DInSAR results from the phase statistical analysis 

      Centolanza, Giuseppe (Universitat Politècnica de Catalunya, 2015-10-23)
      Tesi
      Accés obert
      The Earth is continuously monitored by sensors capable of providing diversified information about several phenomena. In particular Synthetic Aperture Radar (SAR) is able to observe the Earth in all-day and all-weather ...

    • Quantum random number generation based on vacuum field fluctuations 

      Abellán, Carlos, 1990- (Universitat Politècnica de Catalunya, 2013-09-09)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] Random numbers are extensively used in a broad range of applications. Nevertheless, there are two main markets from a commercial point of view: (i) secure communications and (ii) stochastic simulation. According ...