Exploració per tema "Radiometry"

Ara es mostren els items 1-20 de 70

    • 2000 days of SMOS at the Barcelona Expert Centre: a tribute to the work of Jordi Font 

      Turiel Martínez, Antonio; Piles Guillem, Maria; González Gambau, V.; Ballabrera Poy, Joaquim; Gabarró Prats, Carolina; Martinez, Justino; Olmedo, Estrella; Portabella, Marcos; Pérez López, Fernando; Solé Ollé, Jordi (2016-09-01)
      Article
      Accés obert
      Soil Moisture and Ocean Salinity (SMOS) is the first satellite mission capable of measuring sea surface salinity and soil moisture from space. Its novel instrument (the L-band radiometer MIRAS) has required the development ...

    • 3Cat-4: combined GNSS-R, L-Band radiometer with RFI mitigation, and AIS receiver for a I-Unit Cubesat based on software defined radio 

      Muñoz Martin, Joan Francesc; Miguélez Gómez, Noemí; Castellà Rubinat, Ricard; Fernandez Capon, Lara Pilar; Solanellas Bofarull, Arnau; Via Ortega, Pol; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The 3 Cat-4 mission aims to demonstrate the capabilities of nano-satellites plus the versatility of a Software Defined Radio for passive Earth Observation. Three different microwave payloads are integrated into a single ...

    • A two-dimensional Doppler-Radiometer for Earth observation 

      Camps Carmona, Adriano José; Swift, C T (IEEE Piscataway, 2000)
      Text en actes de congrés
      Accés obert
      Compared to synthetic aperture radars (SARs), the angular resolution of microwave radiometers is quite poor. Traditionally, it has been limited by the physical size of the antenna. However, the angular resolution can be ...

    • Analysis of array distortion in a microwave interferometric radiometer: Application to the GeoSTAR project 

      Torres Torres, Francisco; Tanner, Alan B.; Brown, S. T.; Lambrigsten, Bjorn H. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2007-07-31)
      Article
      Accés obert

    • Assessment of back-end RFI mitigation techniques in passive remote sensing 

      Querol Borràs, Jorge; Alonso Arroyo, Alberto; Onrubia Ibáñez, Raúl; Pascual Biosca, Daniel; Camps Carmona, Adriano José (2015)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Radio-Frequency Interference (RFI) is a growing problem specially for those systems that work with low power signals such as passive remote sensing instruments. Consequently, RFI mitigation techniques are currently under ...

    • ³Cat-4 Mission: a 1-unit cubesat for earth observation with a L-band radiometer and a GNSS-reflectometer using software defined radio 

      Ruiz De Azúa Ortega, Juan Adrián; Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Badia Ballús, Marc; Llaveria Godoy, David; Diez Garcia, Carlos; Aguilella, Andrea; Pérez Portero, Adrián; Milián, O.; Sobrino Hidalgo, Marco; Navarro Trastoy, Ángel; Lleó, H.; Sureda Anfres, Miquel; Soria Guerrero, Manel; Calveras Augé, Anna M.; Camps Carmona, Adriano José (2019)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Global Navigation Satellite System Reflectometry and L-band microwave radiometry have been used for soil moisture, biomass, and cryosphere studies. Combining both technologies in a low-power and cost-effective solution ...

    • Comparison of real-time time-frequency RFI mitigation techniques in microwave radiometry 

      Querol Borràs, Jorge; Onrubia Ibáñez, Raúl; Pascual Biosca, Daniel; Alonso Arroyo, Alberto; Hyuk, Park; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Radio-Frequency Interference (RFI) is a well-known problem for Microwave Radiometers (MWR). A number of RFI mitigation techniques have been studied to deal with RFI from the receiver's side. In this study, a comparison in ...

    • Contribution to the application of near ground L-band radiometry 

      Burnham, Colin Jeffrey (Universitat Politècnica de Catalunya, 2019-07-16)
      Projecte Final de Màster Oficial
      Accés obert
      ARIEL is an L-band radiometer adapted from Earth Observation satellite technology for use in terrestrial, near to ground surveys of moisture. The key technical benefits are compact size, lightweight, mobility and high pixel ...

    • Denormalization of visibilities for in-orbit calibration of interferometric radiometers 

      Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Beraza Robledano, Santiago; Gutiérrez, C.; Martín Neira, Manuel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-10-31)
      Article
      Accés obert
      This paper reviews the relative calibration of an interferometric radiometer taking into account the experimental results of the first batch of receivers developed in the frame of the European Space Agency's Soil Moisture ...

    • Description of the Rita payload aboard AlainSat-1, A 3U educational Cubesat 

      Gonga Siles, Amadeu; Pérez Portero, Adrián; Fernandez Capon, Lara Pilar; Garcia Morilla, Alejandro; Gràcia i Solà, Guillem; Contreras Benito, Luis Juan; Ramos Castro, Juan José; Camps Carmona, Adriano José; Jallad, Abdul-Halim (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Text en actes de congrés
      Accés obert
      The Remote sensing and Interference detector with radiome-Try and vegetation Analysis (RITA) payload was selected in 2019 the 2nd GRSS Student Grand Challenge to fly onboard AlainSat-1, a 3U CubeSat developed at the National ...

    • Design and implementation of a RFI monitoring payload for the 5G 24 GHz bands for poketqubes 

      Alcántara Villaverde, Adrián (Universitat Politècnica de Catalunya, 2022-07-05)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat
      The project developed in this thesis consists of creating a PocketQube payload in charge of monitoring the 24 to 25 GHz band to enforce that the emissions of the 5G communications band are within limit. In this thesis, the ...

    • Design, implementation, and testing of a microwave radiometer for RITA, a 1U payload on board of the AlainSat-1 

      Gonga Siles, Amadeu; Pérez Portero, Adrián; Badia Ballús, Marc; Fernández García-Escudero, Luis; Ramos Castro, Juan José; Jallad, Abdul-Halim; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In 2019, the IEEE 2nd GRSS Student Grand Challenge selected the Remote sensing and Interference detector with radiomeTry and vegetation Analysis (RITA) payload to fly on board of AlainSat-1, a 3U CubeSat from the United ...

    • Determination of sea surface salinity and wind speed by L-band microwave radiometry from a fixed platform 

      Gabarró Prats, Carolina; Vall-Llossera Ferran, Mercedes Magdalena; Font, Jordi; Camps Carmona, Adriano José (TAYLOR & FRANCIS LTD, 2004-01-31)
      Article
      Accés obert
      The European Space Agency Soil Moisture and Ocean Salinity (SMOS) mission aims at obtaining global maps of soil moisture and sea surface salinity from space for large-scale and climatic studies. It uses an L-band ...

    • 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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
      Accés obert
      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 ...

    • Efecto de la corrección de la eficiencia de correlación GKJ sobre datos SMOS en la recuperación de humedad 

      Castellví Fernández, Marc (Universitat Politècnica de Catalunya, 2016-10)
      Projecte/Treball Final de Carrera
      Accés obert
      Analysis of the effects of the correction GKJ on SMOS data in the retrieval process of soil moisture

    • Evaluation of MIRAS space borne instrument performance: snap shot radiometric accuracy and its improvement by means of pixel averaging 

      Camps Carmona, Adriano José; Torres Torres, Francisco; Bará Temes, Francisco Javier; Corbella Sanahuja, Ignasi; Martín Neira, Manuel (1997)
      Text en actes de congrés
      Accés obert

    • Fire monitoring with satellite and UAV imagery 

      Lloret Salvo, Carles (Universitat Politècnica de Catalunya, 2016)
      Projecte/Treball Final de Carrera
      Accés obert
      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, ...

    • From experimental campaigns to BEC - CP34 salinity products: Tribute to the Contributions of prof. Font to the SMOS Mission 

      Camps Carmona, Adriano José; Gabarró Prats, Carolina; Vall-Llossera Ferran, Mercedes Magdalena; Blanch Boris, Sebastián; Aguasca Solé, Alberto; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Turiel, Antonio; Portabella, Marcos; Ballabrera-Poy, Joaquim; González-Gambau, Verónica; Martínez, Justino; Villarino Villarino, Ramón; Enrique, Luis; Monerris Belda, Sandra; Bosch, Xavier; Sabia, Roberto; Talone, Marco; Piles Guillem, Maria; Pablos Hernández, Miriam; Valencia, Enric (2016-09-01)
      Article
      Accés obert
      This article summarizes some of the activities in which Jordi Font, research professor and head of the Department of Physical and Technological Oceanography, Institut de Ciències del Mar (CSIC, Spanish National Research ...

    • Generic simulator for conical scanning microwave radiometers 

      Hyuk, Park; Camps Carmona, Adriano José; Querol Borràs, Jorge (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work describes a software tool developed for ESA within the project BIBLOS-2 (BuIlding BLOcks for earth observation mission performance simulator) to model typical conical scanning microwave radiometers in a generic ...