Browsing by Author "López Martínez, Carlos"
Now showing items 1-20 of 115
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A maximum likelihood analysis of the RVoG model for forestry studies in polarimetric SAR interferometry
López Martínez, Carlos; Alonso González, Alberto (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
Dey, Subhadip; Bhattacharya, Avik; Frery, Alejandro C.; López Martínez, Carlos; Rao, Yalamanchili S. (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
Amézaga Sarries, Adrià; López Martínez, Carlos; Jové Casulleras, Roger (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
Amézaga Sarries, Adrià; López Martínez, Carlos; Jové Casulleras, Roger (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 Novel Algorithm for Ship Detection in SAR Imagery Based on the Wavelet Transform
Tello Alonso, Mª Victoria; López Martínez, Carlos; Mallorquí Franquet, Jordi Joan (IEEE, 2005-04-30)
Article
Open AccessCarrying out an effective control of fishing activities is essential to guarantee a sustainable exploitation of sea resources. Nevertheless, as the regulated areas are extended, they are difficult and time consuming to ... -
A physical analysis of polarimetric SAR data statistical models
Deng, Xinping; López Martínez, Carlos; Varona, Eduardo Makhoul (Institute of Electrical and Electronics Engineers (IEEE), 2016-01-08)
Article
Open AccessThe random walk model is studied with the objective to obtain a physical explanation for the texture of polarimetric synthetic aperture radar (SAR) data. A simulator is designed to imitate the scattering process under ... -
Actividades del grupo EEF en el contexto de la red europea TMR "Polarimetría radar: Teoría y aplicaciones"
Fabregas Canovas, Francisco Javier; López Martínez, Carlos; Broquetas Ibars, Antoni (2000)
Conference report
Open AccessThe activity of the EEF group in the TMR European Project Radar Polarimetry: Theory and Applications will be presented in this paper. We have developed new polarimetric-interferometric retrieval algorithms and enhancement ... -
Activities of the IEEE GRSS Spain Chapter
Marcello, Javier; Piles de la Fuente, María Pilar; Camps Valls, Gustau; López Martínez, Carlos; Álvarez Pérez, José Luis; Plaza Miguel, Antonio (Institute of Electrical and Electronics Engineers, 2019-06-01)
Article
Open AccessPresents information on various GRSS Society chapters -
Advanced polarimetric optimization for DInSAR applications with Ground-Based SAR
Iglesias González, Rubén; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; López Martínez, Carlos; Alonso González, Alberto (2012)
Conference report
Restricted access - publisher's policyIn this paper, the applications of advanced polarimetric optimization techniques for Differential Interferometric SAR (DInSAR) pixel selection are explored in the framework of deformation map retrieval in landslides. ... -
Advances in multidimensional synthetic aperture radar signal processing
López Martínez, Carlos; Ferro-Famil, Laurent; Reigber, Andreas (2010)
Article
Open Access -
An evaluation of PolSAR speckle filters on Compact-Pol images
Foucher, Samuel; Landry, Tom; López Martínez, Carlos; Charbonneau, François; Gagnon, Langis (IEEE, 2012)
Conference report
Restricted access - publisher's policyThe goal of this study is to evaluate some polarimetric speckle filters when applied to Compact Polarimetry (CP) data. Seven filters are evaluated on a set of artificial CP images. Performances regarding image restoration ... -
Analisis de funciones mediante wavelets y su aplicacion a la compresion de imagenes sar
López Martínez, Carlos (1998-12)
Article
Restricted access - publisher's policy -
Analysis and validity of the polInSAR line model on forested areas
López Martínez, Carlos; Fabregas Canovas, Francisco Javier; Alonso González, Alberto (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
Martí Cardona, Belén; López Martínez, Carlos; Dolz Ripollès, Josep (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 volumetric scatters based on TanDEM-X polarimetric interferometric SAR data
López Martínez, Carlos; Alonso González, Alberto; Fabregas Canovas, Francisco Javier; Papathanassiou, Kostantinos (IEEE, 2011)
Conference report
Restricted access - publisher's policyPolarimetric SAR Interferometry makes possible a detailed analysis of the volumetric scattering processes present in microwave scattering in case of forest areas. In previous contributions, the authors, under the hypothesis ... -
Analysis, evaluation, and comparison of polarimetric SAR speckle filtering techniques
Foucher, Samuel; López Martínez, Carlos (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. ... -
Application of high resolution spotlight TerraSAR-X data to landslide monitoring
Iglesias González, Rubén; Monells Miralles, Daniel; Centolanza, Giuseppe; Mallorquí Franquet, Jordi Joan; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; López Martínez, Carlos (2012)
Conference report
Restricted access - publisher's policyThis paper seeks to demonstrate that radar-based remote sensing techniques, especially those based on orbital sensors, can be as effective as the conventional geotechnical and discrete GPS measurement ones for the detection ... -
Assessing hypertemporal SENTINEL-1 COHERENCE maps for LAND COVER monitoring
Vicente Guijalba, F.; Duro, Javier; Notarnicola, Claudia; Jacob, Alexander; Mallorquí Franquet, Jordi Joan; López Martínez, Carlos; Pottier, Eric; López Sánchez, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyThis paper presents the main concepts and the initial analysis of the ESA SEOM project SInCohMap “EXPLOITATION OF SENTINEL-1 INTERFEROMETRIC COHERENCE FOR LAND COVER AND VEGETATION MAPPING”. The project evaluates the ... -
Assessment and estimation of the RVoG model in polarimetric SAR interferometry
López Martínez, Carlos; Alonso González, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2014-06-01)
Article
Restricted access - publisher's policyThis paper investigates the validity of the random-volume-over-ground (RVoG) scattering model assumption for forest scattering on polarimetric interferometric synthetic aperture radar (PolInSAR) data. The model makes some ... -
Assessment of L-Band SAR polarimetry for soil and crop monitoring
Barber, Matías; López Martínez, Carlos; Grings, Francisco (VDE-Verlag, 2016)
Conference lecture
Restricted access - publisher's policyNear-future L-band fully polarimetric Synthetic Aperture Radar (SAR) missions will provide meaningful and timely information over agricultural lands. In this paper, we evaluate the potential of L-band SAR polarimetry for ...