Exploració per autor "Fernández Rubio, Juan Antonio"
Ara es mostren els items 34-53 de 59
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LAVICAD: LAboratori VIrtual de Comunicacions Analògiques i Digitals
(2009-02-12T09:27:53Z)
Comunicació de congrés / Text en actes de congrés
Accés obertMitjançant el present ajut s’ha ampliat l’aplicació en xarxa LAVICAD (LAboratori VIrtual de COmunicacions Analògiques i Digitals) que s’ofereix de forma integrada dins de la plataforma d’e-learning COM@WEB. LAVICAD és ... -
LaViCAD: Laboratorio Virtual de Comunicaciones Analógicas y Digitales
(Universitat de Barcelona. Edicions i Publicacions, 2006)
Text en actes de congrés
Accés obertEn este trabajo se presenta tanto el diseño como la experimentación de un Laboratorio Virtual de Comunicaciones Analógicas y Digitales: LaViCAD. Mediante LaViCAD se pueden experimentar y verificar diferentes aplicaciones ... -
Maximum likelihood estimation of position in GNSS
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2007-05)
Article
Accés obertIn this letter, we obtain the Maximum Likelihood Estimator of position in the framework of Global Navigation Satellite Systems. This theoretical result is the basis of a completely different approach to the positioning ... -
Maximum likelihood propagation-delay estimation in unknown correlated noise using antenna arrays: application to Global Navigation Satellite Systems
(1998)
Text en actes de congrés
Accés obertThe problem of estimating the propagation-delay of a desired signal in the presence of interferences and multipath propagation is addressed. This paper presents the maximum likelihood (ML) propagation-delay estimator for ... -
Maximum likelihood time-of-arrival estimation using antenna arrays: Application to global navigation satellite systems
(1998)
Text en actes de congrés
Accés obertThe problem of estimating the time-of-arrival (TOA) of a known signal in the presence of interferences and multipath propagation is addressed. This problem, is essential in high precision receivers of the Global Navigation ... -
Método MLNq para arrays de alta resolución
(Universidad de Sevilla, 1984)
Text en actes de congrés
Accés obertSpectral analysis techniques are used to bearing estimation problem. Each one of this gives a different array beamforming. We show here a generalized normalized Maximum Likehood Method which present a high resolution ... -
ML estimator and hybrid beamformer for multipath and interference mitigation in GNSS receivers
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-05-31)
Article
Accés obertThis paper addresses the estimation of the code-phase(pseudorange) and the carrier-phase of the direct signal received from a direct-sequence spread-spectrum satellite transmitter. The signal is received by an antenna ... -
Multipath and interference errors reduction in gps using antenna arrays
(ESA PUBLICATIONS DIVISION, 1996)
Text en actes de congrés
Accés obertThe Global Positioning System (GPS) is a worldwide satellite based positioning system that provides any user with tridimensional position, speed and time information. The measured pseudorange is affected by the multipath ... -
Numerical simulation of long path spherical wave propagation in three-dimensional random media
(1999-09)
Article
Accés restringit per política de l'editorialA new method to overcome some limitations in the simulation of the propagation of waves originating from a point source through a very long path in a turbulent medium is presented. Existing propagation simulation algorithms ... -
On the inverse windowed Fourier transform
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1999-11-30)
Article
Accés obertThe inversion problem concerning the windowed Fourier transform is considered. It is shown that, out of the infinite solutions that the problem admits, the windowed Fourier transform is the "optimal" solution according to ... -
On the q=1/2 non-extensive maximum entropy distribution
(1998-01)
Article
Accés obertA detailed mathematical analysis on the q = 1/2 non-extensive maximum entropy distribution of Tsallis' is undertaken. The analysis is based upon the splitting of such a distribution into two orthogonal components. One ... -
On wideband deconvolution using wavelet transform
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-07-31)
Article
Accés obertA discussion on the expression proposed in [1]–[3] for deconvolving the wideband density function is presented. We prove here that such an expression reduces to be proportional to the wideband correlation receiver output, ... -
Positioning and timing in the MIMO-gnss framework
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper discusses about GNSS-based positioning and timing in challenging propagation conditions for receivers featuring an array of antennas with an arbitrary distribution. In particular, the positioning and timing ... -
Projecte COM@WEB: plataforma web d'aprenentatge intel•ligent de processament del Senyal i Comunicacions.
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2007-06-28)
Text en actes de congrés
Accés obertLa plataforma d’e-learning: comweb.upc.edu és una eina multimèdia de suport a l’estudi, l’experimentació i l’adquisició de tècniques d’auto-aprenentatge. COM@WEB s’ofereix com a punt de trobada entre estudiants, professors ... -
Reconstruction of the join time-delay Doppler-scale reflectivity density in the wide-band regime. A frame theory based approach
(American Institute of Physics, 2000-08-31)
Article
Accés restringit per política de l'editorialThe inverse scattering problem concerning the determination of the joint time-delay Doppler-scale reflectivity density characterizing continuous target environments is addressed by recourse to the generalized frame theory. ... -
Reducción de los errores causados por la propagación multicamino en los sistemas gnss con un nuevo criterio de medida de las pseudodistancias
(1997)
Text en actes de congrés
Accés obert -
Reducción de los errores causados por la propagación multicamino en los sistemas GNSS con un nuevo critrerio de medida de las pesudodistancias
(1997)
Text en actes de congrés
Accés obert -
Simultaneous tracking and RSS model calibration by robust filtering
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialReceived Signal Strength (RSS) localization is widely used due to its simplicity and availability in most mobile devices. The RSS channel model is defined by the propagation losses and the shadow fading. These parameters ... -
Snapshot processing of high-order BOC signals in the cloud: on sensitivity and distortion effects
(ION Publications (The Institute of navigation), 2017)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper discusses the unambiguous estimation of high-order BOC signals in the cloud based on signal snapshots gathered by low-end SDR receivers. In particular, the sensitivity and distortion problems are introduced, ... -
Spatial-temporal processing with restriction of degrees of freedom for CDMA-multiuser detection
(1998)
Text en actes de congrés
Accés obertMultipath distortion and multiple access interference are major limitations for the performance of wireless CDMA systems. In order to overcome both problems, a base-station antenna array RAKE receiver is proposed in this ...
