Browsing by Subject "Radar d'obertura sintètica"
Now showing items 1-20 of 251
-
A fully-focused SAR omega-K closed-form algorithm for the Sentinel-6 radar altimeter: methodology and applications
(Institute of Electrical and Electronics Engineers (IEEE), 2024-01-01)
Article
Open AccessThe 2-D frequency-based omega-K method is known to be a suitable algorithm for fully focused SAR (FF-SAR) radar altimeter processors, as its computational efficiency is much higher than equivalent time-based alternatives ... -
A Ku-band geosynchronous synthetic aperture radar mission analysis with medium transmitted power and medium-sized antenna
(IEEE, 2011)
Conference report
Restricted access - publisher's policyIn this paper, the feasibility of a geosynchronous satellite for Synthetic Aperture Radar applications is assessed. The nearly fixed position of geosynchronous satellites offers new features to SAR acquisition such as ... -
A maximum likelihood analysis of the RVoG model for forestry studies in polarimetric SAR interferometry
(European Space Agency (ESA), 2013)
Conference report
Restricted access - publisher's policyThis work analyses the validity of the RVoG model as- sumption in case of PolInSAR data in forestry analy- sis. In order to assure that the interferometric coherence describes a line, as imposed by the RVoG model, ... -
A model-free four component scattering power decomposition for polarimetric SAR data
(Institute of Electrical and Electronics Engineers (IEEE), 2021-03-29)
Article
Open AccessTarget decomposition methods of polarimetric Synthetic Aperture Radar (PolSAR) data explain scattering information from a target. In this regard, several conventional model-based methods utilize scattering power components ... -
A multi-frequency FMCW GBSAR: system description and first results
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessThis paper provides a high level overview of a multi-frequency Ground-Based Synthetic Aperture Radar operating at X-, C-, L- and P-bands. The system core is implemented using a flexible high performance Software Defined ... -
A performance evaluation of SAR-GMTI missions for maritime applications
(Institute of Electrical and Electronics Engineers (IEEE), 2015-05-01)
Article
Open AccessThis paper proposes a new optimized multichannel synthetic aperture radar (SAR) configuration, based on receiving antennas with nonuniformly displaced phase centers, intended for ground moving target indication (GMTI) ... -
Acceleration of synthetic aperture radar for on-board space systems
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Conference report
Open AccessThere is an increasing trend in modern space systems to move processing that until now was transmitted to ground for processing, on board the satellite. Synthetic Aperture Radar (SAR) is an example of such processing. ... -
Accurate, grid-robust and versatile combined-field discretization for the electromagnetic scattering analysis of perfectly conducting targets
(2020-04-15)
Article
Open AccessRecent 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, ... -
ACE-OT: Polarimetric SAR data based amplitude contrast enhancement algorithm for offset tracking applications
(Institute of Electrical and Electronics Engineers (IEEE), 2022-08-01)
Article
Open AccessThe use of polarimetric synthetic aperture radar (SAR) data can improve the performance of persistent scatterer interferometry (PSI). However, its huge potential remains locked for the amplitude information-based offset ... -
Adaptation of a disaggregation algorithm to be applied to ESA CCI database. Validation at the Iberian Peninsula.
(Universitat Politècnica de Catalunya, 2022-10-26)
Bachelor thesis
Open AccessWe are in a climatic emergency and the regular and global and/or local monitoring of essential climatic variables (ECV) is of great help to be able to know and mitigate the effects of climate change. Soil moisture is on ... -
Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar
(Universitat Politècnica de Catalunya, 2009-06-29)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Deutsches Zentrum für Luft-und RaumfahrtThe thesis “Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar” is a project carried out in the Microwaves and Radar Institute (IHR) at the German Aerospace Center (DLR) The objective ... -
Advanced processing of remotely sensed big data for cultural heritage conservation
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference report
Open AccessDamage assessment, protection and preservation of built patrimony are a priority at national and local levels due to their importance to many cultural and economic aspects. This paper presents a methodology to estimate the ... -
Advances in multidimensional synthetic aperture radar signal processing
(2010)
Article
Open Access -
Airborne bistatic SAR receiver with the capability of use different opportunity transmitters
(2008)
Conference report
Open AccessThis paper describes the design and construction of a bistatic SAR receiver suitable for airborne applications, using orbital SAR systems (ENVISAT, ERS-2, RADARSAT, TerraSAR-X among others) as opportunity transmitters. The ... -
An assessment of SAOCOM L-Band PolInSAR capabilities for canopy height estimation: A case study over managed forests in Argentina
(Institute of Electrical and Electronics Engineers (IEEE), 2024-02-07)
Article
Open AccessThis work presents the first results of canopy height mapping with L -Band SAOCOM data by means of Polarimetric SAR Interferometry (PolInSAR). For this study case, a colocated temporal series of SAOCOM fully polarimetric ... -
Analisis de funciones mediante wavelets y su aplicacion a la compresion de imagenes sar
(1998-12)
Article
Restricted access - publisher's policy -
Analysis and evaluation of Terrain Observation by Progressive Scans (TOPSAR) mode in Synthetic Aperture Radar
(Universitat Politècnica de Catalunya, 2009)
Master thesis (pre-Bologna period)
Open AccessSynthetic Aperture Radar (SAR) is a technique used in radar (RAdio Detection And Ranging) [1] systems to get high resolution images which are impossible to obtain with a conventional radar. This method allows us to acquire ... -
Analysis and validity of the polInSAR line model on forested areas
(2012)
Conference report
Restricted access - publisher's policyThis paper focuses on the analysis of certain hypotheses considered in quantitative remote sensing of forest areas by means of Polarimetric SAR Interferometry (PolInSAR). When addressing the quantitative estimation of ... -
Analysis of ASAR/Envisat polarimetric backscattering characteristics of Doñana National Park wetlands
(Institute of Electrical and Electronics Engineers, 2009)
Conference report
Open AccessDoñana National Park wetlands, in southwest Spain, undergo yearly cycles of inundation and drying out. These cycles, together with great extensions of annual helophytes, make of Doñana a rapidly changing environment. 43 ... -
Analysis of denoising algorithms for Polarimetric SAR data: the cases of the Bilateral and the Non Local Means filters
(Universitat Politècnica de Catalunya, 2014-09-12)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Technische Universität Berlin[ANGLÈS] The aim of this thesis is to do an in-depth analysis of state-of-the-art denoising methods for Polarimetric SAR data and to propose a new algorithm taking advantage on their strong points. The filters under analysis ...
