Exploració per tema "Radar"
Ara es mostren els items 15-34 de 322
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A pulsed carrier recovery using a discrete conception of the PLL
(Institute of Electrical and Electronics Engineers (IEEE), 1992)
Text en actes de congrés
Accés obertA bistatic radar system requires accurate synchronization between the transmitter and the remote receiver in order to achieve a correct coherent target detection and positioning. An unlinked receiver carrier phase/frequency ... -
A review and test of shoreline extraction techniques
(2023-05-25)
Article
Accés obertShoreline represents the boundary between land and sea, and its accurate extraction is of utmost importance because of the economic and ecological value of coastal areas. Nowadays, satellite remote sensing is widely used ... -
A Small Baseline DIFSAR Approach for Investigating Deformations on Full Resolution SAR Interferograms
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-07-31)
Article
Accés obertThis paper presents a differential synthetic aperture radar (SAR) interferometry (DIFSAR) approach for investigating deformation phenomena on full-resolution DIFSAR interferograms. In particular, our algorithm extends ... -
A suboptimum rank test for radar detection
(Universitat Politècnica de Catalunya (UPC), 1983)
Text en actes de congrés
Accés obertIn this communication, a new nonparametric rank scheme is in traduced for Radar application and its performance briefly analyzed. The proposed scheme has a suboptimum character, since it is introduce as a simplification ... -
A temporal phase coherence estimation algorithm
(VDE Conference Publications, 2018)
Text en actes de congrés
Accés restringit per política de l'editorialPixel selection is a critical procedure in DInSAR processing. In this paper a new temporal phase coherence (TPC) estimation algorithm is proposed for the pixel selection. TPC is calculated based on the estimated interferometric ... -
A two-dimensional doppler-radiometer for earth observation
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-07-31)
Article
Accés obertCompared to synthetic aperture radars (SARs), the angular resolution of microwave radiometers is quite poor. Traditionally, it has been limited by the physical size of the antenna. However, the angular resolution can be ... -
A4CAT. A plataform for weather-related risk events management
(Universitat Politècnica de Catalunya, 2020-06)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: HYDS (Hydrometeorological Innovate Solutions)In the framework of the EU funded research project under the H2020 framework programme ANYWHERE (Enhancing emergency management and response to extreme weather and climate events) a system to integrate both hazard and ... -
Accuracy assessment of SAR interferometry using the ERS-1
(Institute of Electrical and Electronics Engineers (IEEE), 1995)
Text en actes de congrés
Accés obertA SAR raw data simulator and a SAR processor are used as a tool for performance assessment of SAR interferometry algorithms like the multi-baseline and multifrequency. Traditional algorithms have also been tested with real ... -
Accurate numerical modeling of the TARA reflector system
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-07-31)
Article
Accés obertThe radiation pattern of the large parabolic reflectors of the Transportable Atmospheric RAdar system (TARA), developed at Delft University of Technology, has been accurately simulated. The electric field integral ... -
Accurate, grid-robust and versatile combined-field discretization for the electromagnetic scattering analysis of perfectly conducting targets
(2020-04-15)
Article
Accés obertRecent implementations of the Electric-Field Integral Equation (EFIE) for the electromagnetic scattering analysis of perfectly conducting targets rely on the electric current expansion with the monopolar-RWG basis functions, ... -
Active signal repeater for interferometric precise orbit determination
(Universitat Politècnica de Catalunya, 2021-07-27)
Treball Final de Grau
Accés restringit per acord de confidencialitat -
ADS-B radar system for data gathering and real time air traffic monitoring
(Universitat Politècnica de Catalunya, 2023-06-07)
Treball Final de Grau
Accés restringit per acord de confidencialitatThis thesis will aim to design and implement an ADS-B integral and distributed system for detecting aircrafts broadcasts messages. Those messages will be processed and stored in a SQL database the project will rely on an ... -
Advanced radar geosynchronous observation system: ARGOS
(Institute of Electrical and Electronics Engineers (IEEE), 2015-07-01)
Article
Accés obertThe Advanced Radar Geosynchronous Observation System is proposed to be a multiple-input–multiple-output synthetic aperture radar (SAR) system hosted on a swarm of minisatellites in quasi-geostationary orbits. The system ... -
Algoritmo interferométrico para un sistema radar de apertura sintética circular de corto alcance
(1997)
Text en actes de congrés
Accés obertThis paper presents an interferometric algorithm capable of working with SAR images obtained from measurements carried out with antennas that describe a circular trajectory. The antennas are positioned on a vertical mast ... -
Alternative processing for micro rain radar (MRR) observations
(2018)
Comunicació de congrés
Accés obertThe most common function of weather radars is to provide a description of the precipitation field, typically in four dimensions: temporal evolution of a 3D field, including characteristics of precipitation and rainfall ... -
An adaptive multilooking scheme for multi-temporal insar data
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Text en actes de congrés
Accés restringit per política de l'editorialMultilooking is an effective speckle reduction tool for InSAR images. However, it has some limitations. Based on the De-specKS and NL-SAR algorithms, an adaptive multilooking scheme for multi-temporal InSAR data has been ... -
An improvement of offset tracking for cross hair (CH) and patch like (PL) elimination and reliability estimation for large deformation monitoring with SAR data
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés obertSAR based offset tracking (OT) is an efficient tool for ground deformation observation, and signal to noise ratio (SNR) is its common error indicator. However, ground feature variations often weaken the accuracy of OT. In ... -
Analisis y caracterización de un detector radar en entornos interferentes con estadistica Weibull coherente
(1991)
Text en actes de congrés
Accés obertThe paper deals wilh the problem of radar delection of a target echo embedded in Weibull cluner and while gaussian noise. To derive a suitable processing scheme, the paper resons lo the general theory of radar delection ... -
Analysis and design of an interferometer for geostationary synthetic aperture radars orbit determination
(Universitat Politècnica de Catalunya, 2015-07)
Projecte/Treball Final de Carrera
Accés obertThe industry of remote sensing has nowadays strongly developed systems, which are versatile and adaptable, however they are not optimal for certain applications. With more than enough reason from it, a new technology of ... -
Analysis and reduction of the distortions induced by time-domain filtering techniques in network analyzers
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-08-31)
Article
Accés obertThe removal of isolation errors plays an essential role in the calibration process of radar scattering measurements. One of the most common techniques used for that purpose is time-domain filtering, also known as gating. ...