Exploració per autor "Vall-Llossera Ferran, Mercedes Magdalena"
Ara es mostren els items 11-30 de 165
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An evaluation of soil moisture downscaling techniques using L.Band Airbone observations
(SARTI (Technological Development Centre of Remote Acquisition and Data processing Systems), 2010-04-13)
Article
Accés obert -
Analysis of Correlation and Total Power Radiometer Front-Ends Using Noise Waves
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-11-30)
Article
Accés obertA complete and systematic noise analysis of radiometer front-ends, including both total power and correlation measurements, is presented. The procedure uses the concepts of noise waves and S-parameters, widely used in ... -
Analysis of correlation and total power radiometer front-ends using noise waves
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-11-30)
Article
Accés obertA complete and systematic noise analysis of radiometer front-ends, including both total power and correlation measurements, is presented. The procedure uses the concepts of noise waves and S-parameters, widely used in ... -
Analyzing spatio-temporal factors to estimate the response time between SMOS and in-situ soil moisture at different depths
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-08-13)
Article
Accés obertA comprehensive understanding of temporal variability of subsurface soil moisture (SM) is paramount in hydrological and agricultural applications such as rainfed farming and irrigation. Since the SMOS (Soil Moisture and ... -
Análisis de antenas de reflector mediante procesado gráfico
(Universidad de Valladolid, 1995)
Text en actes de congrés
Accés obertThe aim of this article is to show a new technique for calculating the Radiation Pattern of arbitrary geometry reflector antennas. We use the Graphical processing technique developed in this group for Radar Cross Section ... -
Aplicación de algortimos gráfico de iluminación global al cálculo de interacción electromagnética entre superficies metálicas
(Unión Científica Internacional de Radio (URSI), 1990)
Text en actes de congrés
Accés obert -
Aplicación del modelado geométrico a problemas de difracción electromagnética
(Universitat Politècnica de Catalunya, 1994-03-01)
Tesi
Accés obertEn esta tesis se estudia el problema de modelado geométrico de objetos arbitrarios para aplicaciones de análisis electromagnético. El objetivo principal ha sido el desarrollo de un proceso completo, lo mas general posible, ... -
Assessment of multi-scale SMOS and SMAP soil moisture products across the Iberian Peninsula
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-02-01)
Article
Accés obertIn the last decade, technological advances led to the launch of two satellite missions dedicated to measure the Earth’s surface soil moisture (SSM): the ESA’s Soil Moisture and Ocean Salinity (SMOS) launched in 2009, and ... -
Bayesian unsupervised machine learning approach to segment arctic sea ice using SMOS data
(2021-03-28)
Article
Accés obertMicrowave radiometry at L-band is sensitive to sea ice thickness (SIT) up to ~ 60 cm. Current methods to infer SIT depend on ice-physical properties and data provided by the ESA’s Soil Moisture and Ocean Salinity (SMOS) ... -
Boundary element method applied to polarimetric radiometry of rain events
(Institute of Electrical and Electronics Engineers (IEEE), 2000)
Text en actes de congrés
Accés obert -
Brightness-temperature retrival methods in synthetic aperture radiometers
(IEEE, 2009-01)
Article
Accés obertBightness-temperature retrieval techniques for synthetic aperture radiometers are reviewed. Three different approaches to combine measured visibility and antenna temperatures, along with instrument characterization ... -
Burned area prediction in Southern Asia using machine learning with land and atmospheric parameters
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Comunicació de congrés
Accés obertIn the work a random forest model has been implemented as an interpretable machine learning tool in the effort to estimate the burned areas caused by fire outbreaks in India, Pakistan, and Myanmar in April and May 2022. ... -
Calibratin of fully polarimetric radiometers: the LAURA radiometer
(2000)
Text en actes de congrés
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Calibration methods in large interferometric radiometers devoted to earth observation
(VSP, 2000-01)
Capítol de llibre
Accés restringit per política de l'editorialThis 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 ... -
Calibration procedures in 2-D large interferometric radiometers study applied to the MIRAS/SMOS instrument
(2000)
Text en actes de congrés
Accés obert -
Calibration trade-off in large interferometric radiometers devoted to earth observation
(Centro Stampa, 1999)
Text en actes de congrés
Accés obert -
Calibration, performance, and imaging tests of a fully digital synthetic aperture interferometer radiometer
(2012-06-28)
Article
Accés restringit per política de l'editorialThis work presents the calibration, characterization, and imaging tests of the Passive Advanced Unit-Synthetic Aperture instrument (PAU-SA). PAU-SA is a fully digital -shaped two-dimensional synthetic aperture interferometric ... -
Combining SMOS with visible and near/shortwave/thermal infrared satellite data for high resolution soil moisture estimates
(Elsevier, 2014-08-04)
Article
Accés restringit per política de l'editorialSensors in the range of visible and near-shortwave-thermal infrared regions can be used in combination with passive microwave observations to provide soil moisture maps at much higher spatial resolution than the original ... -
Correlated triple collocation to estimate SMOS, SMAP and ERA5-Land soil moisture errors
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Comunicació de congrés
Accés obertThe novel Correlated Triple Collocation (CTC) analysis allows to assess three different data sources of similar spatial resolutions, but with two of them being correlated. In this study, the CTC was applied to estimate the ... -
Denormalization of visibilities for in-orbit calibration of interferometric radiometers
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-10-31)
Article
Accés obertThis 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 ...
