Exploració per tema "Radar d'obertura sintètica"
Ara es mostren els items 53-72 de 240
-
Calibration techniques of interferometric microwave receivers
(Universitat Politècnica de Catalunya, 2017-10-18)
Treball Final de Grau
Accés restringit per decisió de l'autorAn interferometer for orbital determination receives a satellite signal at different spatial points using antennas that form a baseline. Those received signals have a different phase which is related to the distance between ... -
Caracterització dels moviments del terreny a la zona de Cardona
(Universitat Politècnica de Catalunya, 2016-06-22)
Projecte/Treball Final de Carrera
Accés obert -
Caracterització i extensió a plataformes aèries no tripulades d'un processador SAR basat en la tècnica Backprojection
(Universitat Politècnica de Catalunya, 2016-07-08)
Projecte/Treball Final de Carrera
Accés obertThe aim of this project is the characterization of a SAR processor for the GB-SAR UPC technique based on backprojection. It has also been decided to make a first evaluation of the feasibility of usethe GB-SAR system in ... -
Characterization of a precise orbit determination interferometer
(Universitat Politècnica de Catalunya, 2018-02-06)
Treball Final de Grau
Accés obertThis project addresses the characterization of an interferometer used for satellite orbit determination. It is included in the context of the assemblage of a Geostationary Synthetic Aperture Radar (GeoSAR) for Earth and ... -
Circular synthetic aperture radar (C-SAR) system for ground based applications
(IEE-INST ELEC ENG, 1997-05-01)
Article
Accés obertThe authors present an SAR system capable of obtaining radar images from measurements carried out with antennas that describe a circular trajectory centred outside the target region. The analytical formulation of the ... -
Classification of wheat and barley fields using high-resolution Sentinel-1 backscatter data
(Universitat Politècnica de Catalunya, 2020-06)
Treball Final de Grau
Accés obertIn a world where food demand keeps increasing due to constant population growth, it is very important to ensure food supply to all the inhabitants despite the high arable land demand. To manage that, it is crucial that the ... -
Cloud-based InSAR delivery architecture and mobile application
(Universitat Politècnica de Catalunya, 2017-04)
Treball Final de Grau
Accés restringit per acord de confidencialitat -
Coastal bathymetry estimation using an ensemble of synthetic aperture radar images from Sentinel-1
(SARTI, 2018)
Article
Accés obertIn this study, coastal bathymetry is estimated with a wave ray-tracing algorithm using wave parameters retrieved from Synthetic Aperture Radar (SAR) images acquired by the Sentinel-1 satellites. The method relies on the ... -
Coastline detection based on Sentinel-1 time series for ship- and flood-monitoring applications
(2020-10)
Article
Accés obertThis letter addresses the use of the Sentinel-1 time series with the aim of proposing an automatic and unsupervised coastline detection method that averages the dynamical variations of coastal areas over a limited period ... -
Coherence estimation in synthetic aperture radar data based on speckle noise modeling
(Optical Society of America, 2007-02-28)
Article
Accés obertIn the past we proposed a multidimensional speckle noise model to which we now include systematic phase variation effects. This extension makes it possible to define what is believed to be a novel coherence model able to ... -
Combination of fully focused sentinel-6 and interferometric CryoSat-2 to enhance sea ice retrievals
(Universitat Politècnica de Catalunya, 2023-06)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: isardSATRadar altimetry has proven to be key in Earth observation when retrieving remote and systematic data for looking at long term trends, this is the case of the cryosphere monitoring. In this context, important missions ... -
Compact acquisition system for high resolution radars
(Universitat Politècnica de Catalunya, 2016-10)
Projecte Final de Màster Oficial
Accés obertCurrent analog data acquisition systems are complex systems based on high speed FPGA and microprocessors. Digital technologies are growing faster; microcontrollers are implementing more powerful peripherals, like ... -
Compact L-band SAR payload for UAV
(Universitat Politècnica de Catalunya, 2016-02-09)
Treball Final de Grau
Accés obertDesign of a signal interference canceller due to the coupling between antennas for a SAR system. -
Comparison between differential SAR interferometry and ground measurements data in the displacement monitoring of the earth-dam of Conza della Campania (Italy)
(2014-05-25)
Article
Accés restringit per política de l'editorialThis paper presents the application of Differential Synthetic Aperture Radar (SAR) interferometry (DInSAR) algorithms for the precise monitoring of earth dams ground deformation. The test site selected for this study is ... -
Complex domain analysis of random volume over ground model for forest height
(Universitat Politècnica de Catalunya, 2019-05-22)
Projecte Final de Màster Oficial
Accés obertThis work focuses on the analysis of X-band Interferometric Synthetic Aperture Radar (InSAR) satellite acquisitions over forested areas in Estonia with the main goal of estimating forest tree height. The objective is to ... -
Contribution to ground-based and UAV SAR systems for Earth observation
(Universitat Politècnica de Catalunya, 2017-11-17)
Tesi
Accés obertMankind's way of life is the main driver of a planetary-scale change that is marked by the growing of human population's demand of energy, food, goods, services and information. As a result, it have emerged new ecological, ... -
Country-scale InSAR monitoring for settlement and uplift damage calculation in architectural heritage structures
(2021-09)
Article
Accés obertThe article proposes a methodology for assessing the development of damage in building structures, subjected to differential settlement and uplift, using the analysis of Interferometry Synthetic Aperture Radar (InSAR) data. ... -
Crop classification of multitemporal PolSAR based on 3-D attention module with ViT
(Institute of Electrical and Electronics Engineers (IEEE), 2023-04-26)
Article
Accés obertMultitemporal polarimertic SAR is considered to be very effective in crop classification and cultivated land detection, which has received much attention from researchers. Currently, for most multitemporal polarimetric SAR ... -
Desenvolupament d'algoritmes de compensació de moviment per a SAR embarcat en sistema aeri no tripulat
(Universitat Politècnica de Catalunya, 2014-03)
Projecte/Treball Final de Carrera
Accés obert[ANGLÈS] Study and development of the main image focus algorithms for a Synthetic Aperture Radar (SAR). First starts studying the basic focus techniques and then are implemented autofocus methods to correct the errors in ... -
Design and Implementation of a GNSS reflectometer using a software defined radio
(Universitat Politècnica de Catalunya, 2015-09)
Projecte Final de Màster Oficial
Accés obertThe 3Cat-2 nanosatellite payload includes, amongst other experiments, a Global Navigation Satellite System Reflectometry (GNSS-R) receiver. The payload captures GNSS data from the two channels of a Software Defined Radio ...