Browsing by Subject "Radiation -- Measurement"

Now showing items 1-20 of 33

    • Algoritmos de calibración para radiómetros digitales 

      Guerrero Martínez, Miguel Ángel (Universitat Politècnica de Catalunya, 2009-05)
      Master thesis (pre-Bologna period)
      Open Access

    • An imaging algorithm for synthetic aperture interferometric radiometers with built-in RFI mitigation 

      Camps Carmona, Adriano José; Hyuk, Park; González Gambau, Veronica (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      Radio Frequency Interference (RFI) is probably one of the most important limiting factors in the accuracy of the brightness temperatures measured by microwave radiometers. Due to the proximity of the 'protected' L-band ...

    • 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 ...

    • Assessment on linearity errors in detectors for interferometric radiometers 

      Torres Torres, Francisco; Duffo Ubeda, Núria; Gonzalez-Haro, Cristina; Vilaseca, R; Sagués, L; Martín-Neira, Manuel (2008)
      Conference report
      Restricted access - publisher's policy
      The performance of the power detectors used to denormalize the digital correlations in interferometric radiometers is degraded due to the non-linear behavior of the diode response. This work presents a comprehensive ...

    • Calibration consistency tool for interferometric radiometers 

      González-Gambau, Verónica; Torres Torres, Francisco; Duffo Ubeda, Núria; Martín-Neira, Manuel (2008)
      Conference report
      Restricted access - publisher's policy
      This paper presents a method to check the consistency of the amplitude calibration in interferometric radiometers devoted to Earth observation This tool is based in the intrinsic properties of the internal calibration ...

    • Calibration methods in large interferometric radiometers devoted to earth observation 

      Torres Torres, Francisco; Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Bará Temes, Francisco Javier; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena (VSP, 2000-01)
      Part of book or chapter of book
      Restricted access - publisher's policy
      This paper starts with a summary and classification of errors of any kind that corrupt the fundamental measurement performed by an InR (interferometric radiometer), the so-called visibilities. This summary is based on prior ...

    • Control of the back-end and positioning systems of the MERITXELL radiometer 

      Gómez López, José Javier (Universitat Politècnica de Catalunya, 2017-01)
      Bachelor thesis
      Open Access
      The aim of this project was the implementation of a software to position and obtain the desired measurements by a radiometer called MERITXELL. To satisfy the goals, this project was divided in three blocks (radiometer ...

    • Design, development and test of ICI radiometer back-end modules in the frame of metop 2nd-gen satellite constellation 

      Albajar Garduño, Marc (Universitat Politècnica de Catalunya, 2018-10)
      Master thesis
      Restricted access - author's decision
      Covenantee:   TRYO
      This Thesis belongs to a scientific project realized by the TRYO Company, which is part of the aerospace sector of the SENER Group. It describes the design, analysis, measurements and results of one of the back-end modules ...

    • Digital back-end for RFI detection and mitigation in microwave radiometers 

      Forte Veliz, Giuseppe Francesco; Camps Carmona, Adriano José; Ramos, I.; Vall-Llossera Ferran, Mercedes Magdalena (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Conference report
      Restricted access - publisher's policy
      Radio-frequency interference (RFI) is a serious problem in microwave radiometry. In order to process the received data in real time, a powerful back-end for RFI detection and mitigation system must be implemented. This ...

    • Diseño de filtros planares para radiometría 

      Cardenas Galeano, Enrique; Fernandez Diaz, Ruben (Universitat Politècnica de Catalunya, 2009-12-14)
      Bachelor thesis
      Open Access

    • Dual band TPR radiometer for Snow Water Content determination 

      Albarracin Roberts, Nicolas Jose (Universitat Politècnica de Catalunya, 2020-02)
      Bachelor thesis
      Open Access

    • Dual-frequency L-band patch array for GNSS-R and Microwave Radiometers onboard a 6 Unit CubeSat 

      Fernandez Capon, Lara Pilar (Universitat Politècnica de Catalunya, 2019-10)
      Master thesis
      Restricted access - confidentiality agreement

    • Especificació i prestacions de radiomètres digitals 

      Vericat i Ramos, Manuel (Universitat Politècnica de Catalunya, 2009-02-11)
      Master thesis (pre-Bologna period)
      Open Access
      Per altra banda, aquest document fa un anàlisi de les prestacions dels radiòmetres digitals en general així com de les millores que proporcionen respecte a les anteriors topologies totalment analògiques. Paràmetres com ...

    • Fire monitoring with satellite and UAV imagery 

      Lloret Salvo, Carles (Universitat Politècnica de Catalunya, 2016)
      Master thesis (pre-Bologna period)
      Open Access
      Wildfires are of major concern now days because, even though they have also a natural role, they have negative impacts in environmental, economic and social terms. The main purposes of this project are the study, combination, ...

    • Illuminantion measurement system for hyperspectral cameras 

      Pallarès Solé, Jordi (Universitat Politècnica de Catalunya, 2020-02)
      Master thesis
      Restricted access - author's decision
      SOLPI has developed an airborne hyperspectral imaging solution to measure spectral signatures which can be used in applications like agriculture and construction. The system needs an illuminant reference that will be used ...

    • Impact of doppler frequency compensation errors on spaceborne GNSS-R altimetry 

      Hyuk, Park; Camps Carmona, Adriano José; Valencia Domènech, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Conference report
      Restricted access - publisher's policy
      The compensation of the Doppler frequency error is important to accurately estimate the sea height in spaceborne GNSSR altimetry. This work presents the impact of the residual Doppler error on the altimetric performance. ...

    • Impact of signal quantization on the performance of RFI mitigation algorithms 

      Díez García, Raúl; Camps Carmona, Adriano José (Multidisciplinary Digital Publishing Institute (MDPI), 2019-01-01)
      Article
      Open Access
      Radio Frequency Interference (RFI) is currently a major problem in Communications and Earth Observation, but it is even more dramatic in Microwave Radiometry because of the low power levels of the received signals. Its ...

    • Impact of the local oscillator calibration on the SMOS sea surface salinity maps 

      Gabarró Prats, Carolina; González-Gambau, Verónica; Martínez, J.; Guimbard, S.; Gourrion, J.; Piles Guillem, Maria; Portabella, M.; Font, J. (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Conference report
      Restricted access - publisher's policy
      The Local Oscillators (LO) of the Microwave Imaging Radiometer using Aperture Synthesis (MIRAS) onboard the Soil Moisture and Ocean Salinity (SMOS) satellite are used to maintain the operating frequency of the 69 receivers. ...

    • Multi-modal deep learning for Fuji apple detection using RGB-D cameras and their radiometric capabilities 

      Gené Mola, Jordi; Vilaplana Besler, Verónica; Rosell Polo, Joan Ramon; Morros Rubió, Josep Ramon; Ruiz Hidalgo, Javier; Gregorio, Eduard (2019-07-01)
      Article
      Restricted access - publisher's policy
      Fruit detection and localization will be essential for future agronomic management of fruit crops, with applications in yield prediction, yield mapping and automated harvesting. RGB-D cameras are promising sensors for fruit ...

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

      Dávila Faúndez, Rubén (Universitat Politècnica de Catalunya, 2011-01-12)
      Master thesis (pre-Bologna period)
      Open Access
      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 ...