Browsing by Subject "Synthetic aperture radar"
Now showing items 1-20 of 159
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A comparison of phase unwrapping techniques in synthetic aperture radar interferometry
(Institute of Electrical and Electronics Engineers (IEEE), 1999)
Conference report
Open AccessA comparison of different phase unwrapping techniques based on the least mean square error is presented. A testing environment based on simulated interferograms has been created in order to assess the methods described in ... -
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 miniaturized two axis sun sensor for attitude control of nano-satellites
(2010-10-10)
Article
Open AccessThis paper describes the design, fabrication, characterization, and satellite integration of a miniaturized two axis sun sensor which has been used in the attitude control system of the Spanish nano-satellite NANOSAT-1B. ... -
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 multi-frequency SDR-based GBSAR: System overview and first results
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-04-21)
Article
Open AccessThis work describes a system-level overview of a multi-frequency GBSAR built around a high performance software defined radio (SDR). The main goal of the instrument is to be employed as a demonstrator and experimental ... -
A near field spherical wave inverse synthetic aperture radar technique
(Institute of Electrical and Electronics Engineers (IEEE), 1992)
Conference report
Open AccessThe authors present an imaging near-field spherical wave inverse synthetic aperture radar (SWISAR) algorithm based on a focusing operator of the scattered fields on the target surface. A spherical wave can be easily generated ... -
A Small Baseline DIFSAR Approach for Investigating Deformations on Full Resolution SAR Interferograms
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-07-31)
Article
Open AccessThis 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 ... -
Active reflectors for interferometric SAR deformation measurement
(2021-06-28)
Article
Open AccessThis paper is focused on the design, implementation and testing of an active reflector, to be used to support deformation monitoring studies based on Synthetic Aperture Radar interferometry. The device is designed to work ... -
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 ... -
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 adaptive scattering-mechanism-based filtering for multi-temporal pol(In)SAR data
(VDE Conference Publications, 2018)
Conference report
Restricted access - publisher's policyThis paper presents a new adaptive filtering method for multi-temporal Pol(In)SAR images' denoising. Based on the polarimetric scattering mechanism of the given PolSAR data, the filtering first classifies all pixels into ... -
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)
Conference report
Open AccessSAR 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 ... -
Analysis and design of an interferometer for geostationary synthetic aperture radars orbit determination
(Universitat Politècnica de Catalunya, 2015-07)
Master thesis (pre-Bologna period)
Open AccessThe 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 of ASAR/Envisat polarimetric backscattering characteristics of Doñana National Park wetlands
(IEEE Press. 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 ... -
Analysis of the capability of C-band fully polarimetric SAR data to monitor snowed environments
(Universitat Politècnica de Catalunya, 2013-12-20)
Master thesis
Open Access[ANGLÈS] This study focuses on snow cover monitoring based on C-Band fully Polarimetric Synthetic Aperture Radar (PolSAR) data. Due to the lack of polarimetric sensors, most of the previous studies have been based on single ... -
Analysis, evaluation, and comparison of polarimetric SAR speckle filtering techniques
(2014-04)
Article
Restricted access - publisher's policySpeckle noise filtering on polarimetric SAR (PolSAR) images remains a challenging task due to the difficulty to reduce a scatterer-dependent noise while preserving the polarimetric information and the spatial information. ... -
Anàlisi i interpretació de mesures de deformació obtingudes amb Interferometria Diferencial SAR satel·litat. Aplicació a l'Area Metropolitana de Barcelona
(Universitat Politècnica de Catalunya, 2019-09)
Bachelor thesis
Restricted access - author's decision
Covenantee: Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
