Exploració per autor "Corbella Sanahuja, Ignasi"
Ara es mostren els items 27-46 de 216
-
Calibratin of fully polarimetric radiometers: the LAURA radiometer
Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Torres Torres, Francisco; Bará Temes, Francisco Javier (2000)
Text en actes de congrés
Accés obert -
Calibration and experimental results of a two-dimensional interferometric radiometer laboratory prototype
Camps Carmona, Adriano José; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Bará Temes, Francisco Javier (1997-09)
Article
Accés restringit per política de l'editorialIn recent years, Earth observation by means of aperture synthesis radiometry has received special attention by some space agencies as a possible solution to achieve high radiometric accuracy and spatial resolution at low ... -
Calibration and experimental results of a two-dimensional interferometric radiometer laboratory prototype
Camps Carmona, Adriano José; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Bará Temes, Francisco Javier; Soler, Xavier (American Geophysical Union, 1997-09-01)
Article
Accés obert -
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)
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 of the MIRAS Radiometers
Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Duffo Ubeda, Núria; Durán Martínez, Israel; González Gambau, Verónica; Oliva Balagué, Roger; Closa, Josep; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2018-12-21)
Article
Accés obertThe microwave imaging radiometer with aperture synthesis (MIRAS) is formed by 69 total power radiometers, of which three are the noise-injection type. Their calibration is reviewed on the basis of the data gathered during ... -
Calibration procedures in 2-D large interferometric radiometers study applied to the MIRAS/SMOS instrument
Torres Torres, Francisco; Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Bará Temes, Francisco Javier; Vall-Llossera Ferran, Mercedes Magdalena; Duffo Ubeda, Núria (2000)
Text en actes de congrés
Accés obert -
Calibration trade-off 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 (Centro Stampa, 1999)
Text en actes de congrés
Accés obert -
Caracterización de transistores de Microoendas mediante la técnica de Calibrción TRL
Pradell i Cara, Lluís; Sabater, C; Artal, E; Comerón Tejero, Adolfo; Corbella Sanahuja, Ignasi (-, 1989)
Text en actes de congrés
Accés obert -
Caracterización de transistores de microondas mediante la técnica de calibración TRL
Pradell i Cara, Lluís; Artal, Eduardo; Comerón Tejero, Adolfo; Corbella Sanahuja, Ignasi; Sabater, C. (1989)
Text en actes de congrés
Accés obertIn this paper, the design of a Microstrip Test Fixture for TRL calibration is described. Experimental results for S-parameters measurement of a GaAs FET chip in the 3-22 GHz frequency range are presented. Repeatability of ... -
Caracterización del ruido de fase de los subsistemas que integran un oscilador sintetizado
Barba, J.M.; Torres Torres, Francisco; Corbella Sanahuja, Ignasi (1992)
Text en actes de congrés
Accés obertA set of phase noise measurement techniques, based on the HP 3048A system, are compared in terms of major applications and limitations. To ilustrate the items, several significant measures are discussed. -
CI de microondas. Aplicaciones y mercado
Artal, Eduardo; Comerón Tejero, Adolfo; Corbella Sanahuja, Ignasi (1988-10)
Article
Accés restringit per política de l'editorial -
CI de microondas. Tecnologías
Artal, Eduardo; Comerón Tejero, Adolfo; Corbella Sanahuja, Ignasi (1988-09)
Article
Accés restringit per política de l'editorialLos circuitos integrados monolíticos de microondas presentan ventajas potenciales respecto de los circuitos híbridos habituales en cuanto a fiabilidad, reducido tamaño y peso, banda ancha y bajo coste. Se describe el estado ... -
Comparación entre medidas AC y DC de resistencias parásitas del circuito equivalente del MEFET
Corbella Sanahuja, Ignasi; Pradell i Cara, Lluís (Universidad de Málaga, 1992)
Text en actes de congrés
Accés obert -
Comparación entre técnicas de medida y modelización de transistores MESFET y HEMT discretos hasta 40 GHz
Pradell i Cara, Lluís; Corbella Sanahuja, Ignasi; Purroy Martín, Francesc; Cáceres, M. (Universidad de Málaga, 1992)
Text en actes de congrés
Accés obert -
Compensation of elevation angle variations in polarimetric brightness temperature measurements from airborne microwave radiometers
Corbella Sanahuja, Ignasi; Gasiewski, A.J.; Klein, Marian; Piepmeier, Jeffrey R. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-01-31)
Article
Accés obertThis paper presents a method for compensating the elevation angle fluctuations occurring in airborne radiometry due to aircraft roll and pitch. The correction is based on a radiative transfer model, and is demonstrated by ... -
Considerations about antenna pattern measurements of 2-D aperture synthesis radiometers
Camps Carmona, Adriano José; Skou, Neils; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria (IEEE, 2006-04-30)
Article
Accés obertAccurate measurement of the antenna voltage patterns of large-aperture synthesis radiometers is critical in order to achieve good radiometric accuracy, and a very time consuming and expensive task. Measurement requirements ... -
Considerations About Antenna Pattern Measurements of 2-D Aperture Synthesis Radiometers
Camps Carmona, Adriano José; Skou, Neils; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria (IEEE, 2006-04-30)
Article
Accés obertAccurate measurement of the antenna voltage patterns of large-aperture synthesis radiometers is critical in order to achieve good radiometric accuracy, and a very time consuming and expensive task. Measurement requirements ... -
Control automático de nivel (ALC) de un SSPA en banda Ka
Corbella Sanahuja, Ignasi; Purroy Martín, Francesc (1991)
Text en actes de congrés
Accés obertThis communication describes the design of an Automatic Level Control (ALC) for the transmiter of a CODE (Co-operative Olympus Data Experiment) earth station. The goal of the ALC system is to keep constant the transmited ... -
Correcting the FRA systematic error in VTEC maps from SMOS radiometric data
Rubino, Roselena; Duffo Ubeda, Núria; González Gambau, Verónica; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Oliva Balagué, Roger; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2022-10-17)
Article
Accés obertThe Faraday rotation (FR) is a nonnegligible effect at the L-band, which is the operation frequency of the Soil Moisture and Ocean Salinity (SMOS) mission. This effect introduces a rotation in the electromagnetic field ... -
Correction of spatial errors in SMOS brightness temperature images
Wu, Lin; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Duffo Ubeda, Núria; Martín-Neira, Manuel (IEEE, 2011)
Text en actes de congrés
Accés restringit per política de l'editorialSystematic spatial errors in SMOS brightness temperature images are successfully estimated by using a statistical analysis of measured data. A constant multiplicative mask is derived by averaging spatial errors of a large ...