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Ara es mostren els items 11-30 de 131

    • Advances in multidimensional synthetic aperture radar signal processing 

      López Martínez, Carlos; Ferro-Famil, Laurent; Reigber, Andreas (2010)
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    • An assessment of SAOCOM L-Band PolInSAR capabilities for canopy height estimation: A case study over managed forests in Argentina 

      Seppi, Santiago Ariel; López Martínez, Carlos; Joseau, Marisa Jacqueline (Institute of Electrical and Electronics Engineers (IEEE), 2024-02-07)
      Article
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      This 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 ...

    • An evaluation of PolSAR speckle filters on Compact-Pol images 

      Foucher, Samuel; Landry, Tom; López Martínez, Carlos; Charbonneau, François; Gagnon, Langis (IEEE, 2012)
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      The 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)
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    • Analysis and validity of the polInSAR line model on forested areas 

      López Martínez, Carlos; Fabregas Canovas, Francisco Javier; Alonso González, Alberto (2012)
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      This 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)
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      Doñana 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)
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      Polarimetric 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)
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      Speckle 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)
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      This 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)
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      This 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)
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      This 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 SAOCOM InSAR coherence and its comparison with C-Band: A case study over managed forests in Argentina 

      Ariel Seppi, Santiago; López Martínez, Carlos; Joseau, Marisa Jacqueline (Multidisciplinary Digital Publishing Institute (MDPI), 2022-11-09)
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      The objective of this work is to analyze the behavior of short temporal baseline interferomet ric coherence in forested areas for L-band spaceborne SAR data. Hence, an exploratory assessment of the impacts of temporal and ...

    • Assessment of L-Band SAR polarimetry for soil and crop monitoring 

      Barber, Matías; López Martínez, Carlos; Grings, Francisco (VDE-Verlag, 2016)
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      Near-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 ...

    • Atmospheric phase screen compensation in ground-based sar with a multiple-regression model over mountainous regions 

      Iglesias González, Rubén; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; Mallorquí Franquet, Jordi Joan; López Martínez, Carlos; Gili Ripoll, José Antonio; Corominas Dulcet, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2014-05-01)
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      In this paper, a new model-based technique for the compensation of severe height-dependent atmospheric artifacts, using ground-based synthetic aperture radar (SAR) data over mountainous regions, is proposed. The method ...

    • Automatic vessel monitoring with single and multidimensional SAR images in the wavelet domain 

      Tello Alonso, Mª Victoria; López Martínez, Carlos; Mallorquí Franquet, Jordi Joan (ELSEVIER SCIENCE BV, 2006-12-31)
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      Spaceborne Synthetic Aperture Radar (SAR) techniques constitute an extremely promising alternative compared to traditional surveillance methods thanks to the all-weather and day-and-night capabilities of Radar linked with ...

    • Basic principles of SAR polarimetry 

      López Martínez, Carlos; Pottier, Eric (Springer, 2021)
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      This chapter critically summarizes the main theoretical aspects necessary for a correct processing and interpretation of the polarimetric information towards the development of applications of synthetic aperture radar (SAR) ...

    • Bilateral distance based filtering for polarimetric SAR data 

      Alonso González, Alberto; López Martínez, Carlos; Salembier Clairon, Philippe Jean; Deng, Xinping (2013-10-30)
      Article
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      This paper introduces a non-linear Polarimetric SAR data filtering approach able to preserve the edges and small details of the data. It is based on exploiting the data locality in both, the spatial and the polarimetric ...

    • Binary partition tree as a polarimetric SAR data representation in the space-time domain 

      Alonso González, Alberto; López Martínez, Carlos; Salembier Clairon, Philippe Jean (IEEE, 2011)
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      The aim of this paper is to present a Polarimetric Synthetic Aperture Radar data processing technique on the space-time domain. This approach is based on a Binary Partition Tree (BPT), which is a region-based and multi-scale ...

    • Built-up area mapping using Sentinel-1 SAR data 

      Verma, Abhinav; Bhattacharya, Avik; Dey, Subhadip; López Martínez, Carlos; Gamba, Paolo (Elsevier, 2023-09)
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      A timely and accurate spatial mapping of built-up areas (BA) is crucial in making cities and human settlements safe, resilient, and sustainable. Synthetic Aperture Radar (SAR) data are useful for BA mapping due to strong ...

    • Burned area prediction in Southern Asia using machine learning with land and atmospheric parameters 

      Irawan, Amir Mustofa; Vall-Llossera Ferran, Mercedes Magdalena; López Martínez, Carlos; Camps Carmona, Adriano José; Chaparro Danon, David; Portal González, Gerard; Pablos Hernández, Miriam (Institute of Electrical and Electronics Engineers (IEEE), 2023)
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      In the work a random forest model has been implemented as an interpretable machine learning tool in the effort to estimate the burned areas caused by fire outbreaks in India, Pakistan, and Myanmar in April and May 2022. ...