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

  • 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 ...

  • 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 ...

  • 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 ...