Browsing by Subject "Radiation -- Measurement"

Now showing items 1-20 of 41

    • 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 ...

    • Assembly verification integration and testing of the payload and communications system of the 3CAT-4 cubesat 

      Gonga Siles, Amadeu (Universitat Politècnica de Catalunya, 2020-09)
      Bachelor thesis
      Open Access
      Los nanosatélites han experimentado un importante crecimiento en estos últimos años desde que fueron estandarizados en 2000. El UPC-NanoSat Lab, que se encuentra en el Campus Nord de la Universidad Politécnica de Cataluña, ...

    • 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 ...

    • Deployment mechanism for an L-Band Helix antenna on-board the 3Cat-4 1U CubeSat 

      Fernandez Capon, Lara Pilar; Sobrino Hidalgo, Marco; Milian, Oriol; Aguilella Merelas, Andrea; Solanellas Bofarull, Arnau; Badia Ballús, Marc; Muñoz Martin, Joan Francesc; Ruiz De Azúa Ortega, Juan Adrián; Sureda Anfres, Miquel; Camps Carmona, Adriano José (Universitat Politècnica de Catalunya, 2022-04-29)
      Conference lecture
      Open Access
      Earth Observation (EO) is key for climate and environmental monitoring at global level, and in specific regions where the effects of global warming are more noticeable, such as in polar regions, where ice melt is also ...

    • 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 ...

    • Direct assessment of the sensitivity drift of SQM sensors installed outdoors 

      Bará Viñas, Salvador; Marco, Enric; Ribas, Salvador; García Gil, Manuel; Sanchez De Miguel, Alejandro; Zamorano Saavedra, Juan Carlos (2021-04-16)
      Article
      Open Access
      Long-term monitoring of the evolution of the artificial night sky brightness is a key tool for developing science-informed public policies and assessing the efficacy of light pollution mitigation measures. Detecting the ...

    • 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 ...

    • Exploitation plan for the market launch of a new on line computational application for occupational dosimetry in radiology 

      Martínez Robles, Jordi (Universitat Politècnica de Catalunya, 2020-07-16)
      Master thesis
      Open Access
      This thesis is about the best strategy to get public funding in European calls for highly innovative projects. Using the example of a project application which takes part in the Fast Track to Innovation (FTI) call of the ...

    • 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. ...