Exploració per autor "Vall-Llossera Ferran, Mercedes Magdalena"
Ara es mostren els items 55-74 de 165
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Examen Final
(Universitat Politècnica de Catalunya, 2013-06-05)
Examen
Accés restringit a la comunitat UPC -
Examen Final
(Universitat Politècnica de Catalunya, 2023-06-02)
Examen
Accés restringit a la comunitat UPC -
Examen Final
(Universitat Politècnica de Catalunya, 2022-05-31)
Examen
Accés restringit a la comunitat UPC -
Examen Final
(Universitat Politècnica de Catalunya, 2022-01-19)
Examen
Accés restringit a la comunitat UPC -
EXAMEN REAVALUACIÓ
(Universitat Politècnica de Catalunya, 2022-06-28)
Examen
Accés restringit a la comunitat UPC -
Experimental study on the performance of RFI detection algorithms in microwave radiometry: Toward an optimum combined test
(Institute of Electrical and Electronics Engineers (IEEE), 2013-10)
Article
Accés restringit per política de l'editorialRadio-frequency interference (RFI) is probably today's most serious limitation to the accurate retrieval of geophysical parameters from microwave radiometric measurements. Strong RFI inducing a change in the detected power ... -
Fast algorithms for radar cross section computation of complex objects
(Centre national d'études des télécommunications (CNET), 1990)
Text en actes de congrés
Accés obertRadar cross section (RCS) of complex targets can be obtained in real time using the hardware capabilities of a high performance graphic workstation. Target geometry is modelled by a computer-aided design package. First ... -
Feasibility of RFI mitigation in synthetic aperture radiometery based on subspace spatial filtering
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés restringit per política de l'editorialThe impact of Radio Frequency Interference (RFI) is a very serious problem for spaceborne microwave radiometry. Many Soil Moisture Ocean Salinity (SMOS) images show serious contamination by the RFI. SMOS is even more ... -
From experimental campaigns to BEC - CP34 salinity products: Tribute to the Contributions of prof. Font to the SMOS Mission
(2016-09-01)
Article
Accés obertThis 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 ... -
From field experiments to salinity products: a tribute to the contributions of Jordi Font to the SMOS mission
(2016-09-01)
Article
Accés obertThis 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 ... -
Global L-band vegetation volume fraction estimates for modeling vegetation optical depth
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés restringit per política de l'editorialThe attenuation of microwave emissions through the canopy is quantified by the vegetation optical depth (VOD), which is related to the amount of water, the biomass and the structure of vegetation. To provide microwave-derived ... -
Global unsupervised assessment of multifrequency vegetation optical depth sensitivity to vegetation cover
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Article
Accés obertVegetation optical depth (VOD) has contributed to monitor vegetation dynamics and carbon stocks at different microwave frequencies. Nevertheless, there is a need to determine which are the appropriate frequencies to monitor ... -
High frequency radar cross section of complex objects in real time
(Institute of Electrical and Electronics Engineers (IEEE), 1991)
Text en actes de congrés
Accés obertIt is shown that real-time RCS (radar cross section) computation is possible with a high-performance graphics workstation. Physical optics (PO) and physical theory of diffraction (PTD) approximation are computed using the ... -
High frequency RCS graphical processing
(1990)
Text en actes de congrés
Accés obertThe results presented at this workshop have been obtained with a new and original approach: hardware graphical processing. High-frequency RCS of complex radar targets is computed in real time using a 3-D graphic workstation. ... -
High-Frequency RCS of Perfectly Conducting or Coated Complex Objects in Real Time
(1991)
Text en actes de congrés
Accés obertThis paper present a new and original approach to compute high-freqency radar cross section (RCS) of complex radar targets in real time using a 3-D graphic workstation. The aircraft is modelled with I-DEAS solid modeling ... -
Hyperspectral-derived indices for soil moisture estimation at very high resolution
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialHyperspectral indices from the Compact Airborne Spectrographic Imager (CASI 550), together with land surface temperatures from the Thermal Airborne Spectrographic Imager (TASI 600) and brightness temperatures from a L-band ... -
Ice thickness effects on Aquarius brightness temperatures over Antarctica
(2015-04-01)
Article
Accés obertThe Dome-C region, in the East Antarctic Plateau, is regarded as an ideal natural laboratory for calibration/validation of space-borne microwave radiometers. At L-band, the thermal stability of this region has been confirmed ... -
Impact of day/night time land surface temperature in soil moisture disaggregation algorithms
(2016-09-15)
Article
Accés obertSince its launch in 2009, the ESA’s SMOS mission is providing global soil moisture (SM) maps at ~40 km, using the first L-band microwave radiometer on space. Its spatial resolution meets the needs of global applications, ... -
Impact of incidence angle diversity on SMOS and sentinel-1 soil moisture retrievals at coarse and fine scales
(Institute of Electrical and Electronics Engineers (IEEE), 2022-01-01)
Article
Accés obertIncidence angle diversity of space-borne radiometer and radar systems operating at low microwave frequencies needs to be taken into consideration to accurately estimate soil moisture (SM) across spatial scales. In this ... -
Improved MUSIC-based SMOS RFI source detection and geolocation algorithm
(Institute of Electrical and Electronics Engineers (IEEE), 2016-03-01)
Article
Accés obertThe European Space Agency's Soil Moisture and Ocean Salinity (SMOS) mission has been providing L-band brightness temperature (BT) using its instrument, the Microwave Imaging Radiometer using Aperture Synthesis. In the ...
