Exploració per tema "Radar"
Ara es mostren els items 174-193 de 322
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Ganancia de detectabilidad en radares de alta resoluciónç
(1992)
Text en actes de congrés
Accés obertThe paper presents an evaluation of a high resolution technique intended to enhance the radar detectability of targets. The method is based on the coherent integration of the individually resolved target scatterers. The ... -
GEMINI: geosynchronous SAR for Earth monitoring by interferometry and imaging
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper we discuss a preliminary design for a constellation of geosynchronous (GEO) Synthetic Aperture Radars (SAR). The key design concept is to employ one or more pairs of closely-spaced twin receivers flown ... -
Generació eficient d'interferogrames diferencials mitjantçant un DEM extrem
(Universitat Politècnica de Catalunya, 2008-12-15)
Projecte/Treball Final de Carrera
Accés obertAquest projecte està emmarcat en el camp de la interferometria, una aplicació que permet tenir informació al llarg de l’eix d’observació d’una escena. La informació d’alçada s’extreu a partir del que s’anomena interferograma, ... -
Generación de clutter radar coherente y correlado con estadística tipo K o de Hankel
(1989)
Text en actes de congrés
Accés obertThis paper presents an exogenous model to generate K-distributed, coherent and correlated clutter. This model has been tested for exponencial and gaussian autocorrelation functions, showing good fits for autocorrelation ... -
GeoSAR Mission: Orbit Determination Techniques for a Ground-based Interferometer System
(Universitat Politècnica de Catalunya, 2018-03)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorThe aim of Geostationary Synthetic Aperture Radar (GeoSAR) missions is to obtain daily images of events that take place over the Earth's surface. Some of them are critical to monitor (e.g. land stability control, natural ... -
Geostationary radar orbit determination from radar interferometry
(Universitat Politècnica de Catalunya, 2016-06)
Treball Final de Grau
Accés obertGeostationary Synthetic Aperture Radars require a precise orbit modelling to obtain high resolutions images of the Earth. Applying interferometric techniques to single received signal from pairs of ground stations it is ... -
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 ... -
GNSS-R derived centimetric sea topography: an airborne experiment demonstration
(2013-06)
Article
Accés restringit per política de l'editorialThe results of two airborne experiments performed to test the precision and the relative accuracy of the conventional Global Navigation Satellite Systems Reflectometry (GNSS-R) technique employing only the C/A code are ... -
GRECO Code Rejuvenated: hybrid CPU-graphical processing
(IEEE, 2013)
Text en actes de congrés
Accés restringit per política de l'editorialGRECO code has been updated by replacing the graphical processing technique for computation of Physical Optics surface integral by a hybrid CPU-graphical processing approach. The resulting code needs more CPU power for ... -
Ground moving target indication using multi-channel SAR with non-uniform displaced phase centers
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents an evaluation of a post-Doppler spacetime adaptive Processing (STAP) technique for non-uniformly displaced phase center receivers synthetic aperture radar (SAR). Both theoretical and simulation ... -
Herramienta de calculo de la potencia de clutter producida por perfiles topograficos reales
(1991)
Text en actes de congrés
Accés obertThe surface clutter becames a interference in a radar system that makes it warse. So, ir was built a personal computer tool that obtains the surface clutter power. This tool takes imo consideration the orographic and ... -
High accuracy synthetic aperture radar (SAR) processor for UAV platforms
(Universitat Politècnica de Catalunya, 2018-10-18)
Treball Final de Grau
Accés obertThe combination of frequency-modulated continuous-wave (FMCW) technology and synthetic aperture radar (SAR) techniques leads to lightweight cost-effective imagining sensor of high resolution. One limiting factor to use of ... -
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 resolution GPR 3D images optimization
(Universitat Politècnica de Catalunya, 2017-05)
Treball Final de Grau
Accés obertThe present final bachelor’s degree project is an experimental-based work, where we seek the optimization on the creation and representation of three dimensional images using ground penetrating radar (GPR) technology. This ... -
Identificación selectiva de centros de dispersion radar utilizando tecnicas ISAR
(1991)
Text en actes de congrés
Accés obertThis paper presents an ISAR technique which is able to identify the scattering mechanisms in the target structure wich are responsible of each significant lo be of the RCS vs. angle diagram. The technique is based on a ... -
Image and radar fusion for autonomous driving
(Universitat Politècnica de Catalunya, 2023-10-06)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat -
Image formation for synthetic aperture radar using MATLAB
(Universitat Politècnica de Catalunya, 2008-02-27)
Projecte/Treball Final de Carrera
Accés obertThe study of SAR (Synthetic Aperture Radar) image formation using MATLAB it is explained in the following project. The main to use MATLAB in this project was the most important thing to choose it. As MATLAB it is one of ... -
Impact analysis of wind turbines blockage on doppler weather radar
(2010)
Text en actes de congrés
Accés obert -
Impact of clutter decorrelation on Geosynchronous SAR
(VDE Conference Publications, 2014)
Text en actes de congrés
Accés restringit per política de l'editorialWe discuss the effects of the clutter on a Geosynchronous SAR system exploiting long integration times (from minutes to hours) to counteract for spread losses and increase azimuth resolution. Only stable targets will be ... -
Implementació del precondicionador SAI com a eina acceleradora en el càlcul de la Secció Recta Radar de blancs conductors
(Universitat Politècnica de Catalunya, 2009-07-17)
Treball Final de Grau
Accés obert