Ara es mostren els items 1-20 de 96

  • A comparative study of operational vessel detectors for maritime surveillance using satellite-borne synthetic aperture radar 

    Stasolla, Mattia; Mallorquí Franquet, Jordi Joan; Margarit, Gerard; Santamaría, Carlos; Walker, Nick (2016-06-01)
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    This paper presents a comparative study among four operational detectors that work by automatically post-processing synthetic aperture radar (SAR) images acquired from the satellite platforms RADARSAT-2 and COSMO-SkyMed. ...
  • A comparison of different techniques for atmospheric artefact compensation in GBSAR differential acquisitions 

    Pipia, Luca; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; Mallorquí Franquet, Jordi Joan (IEEE, 2006)
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    In this paper, a comparison of different techniques for compensating the atmospheric artifacts in Ground-Based SAR zero-baseline acquisitions at X-Band is presented. The way the fluctuation of atmospheric parameters like ...
  • Active microwave sensing of highly contrasted dielectric bodies 

    Broquetas Ibars, Antoni; Mallorquí Franquet, Jordi Joan; Rius Casals, Juan Manuel; Jofre Roca, Lluís; Cardama Aznar, Ángel (1993-11)
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    In this work the active tomographic imaging of biological bodies which exhibits a high dielectric contrast is studied. Two approaches based on the Born approximation are presented: a differential reconstruction method which ...
  • Advanced DInSAR analysis on mining areas: La Union case study (Murcia, SE Spain) 

    Herrera, G.; Tomás Jover, Roberto; López-Sánchez, Juan Manuel; Delgado Marchal, José; Mallorquí Franquet, Jordi Joan; Duque Biarge, Sergio; Mulas, J. (ELSEVIER SCIENCE BV, 2007-03-31)
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  • Airborne bistatic SAR receiver with the capability of use different opportunity transmitters 

    Merlano Duncan, Juan Carlos; López Dekker, Francisco J.; Mallorquí Franquet, Jordi Joan; Duque Biarge, Sergio (2008)
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    This 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 ...
  • AIterative algorithm for microwave imaging using the cgm-fft and the pseudoinverse method 

    Mallorquí Franquet, Jordi Joan; Llorens, V (Institute of Electrical and Electronics Engineers (IEEE), 1994)
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    Within biomedical microwave tomography, a spatial iterative method for the reconstruction of the complex permittivity of inhomogeneous lossy dielectric objects with arbitrary shape from their scattered electric field is ...
  • A new approach to DInSAR pixel selection with a combined multi resolution selection method 

    Centolanza, Giuseppe; Iglesias González, Rubén; Monells Miralles, Daniel; Mallorquí Franquet, Jordi Joan (2012)
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    In DInSAR processing it is possible to detect different kinds of targets at different resolutions. Point like scatters can be selected with high resolution selection methods, like amplitude dispersion. Distributed scatters ...
  • A new approach to DInSAR pixel selection with spectral correlation along time between Sublooks 

    Iglesias González, Rubén; Monells Miralles, Daniel; Centolanza, Giuseppe; Mallorquí Franquet, Jordi Joan (2012)
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    This paper presents a full resolution pixel selection method, alternative to the traditional ones, which is based on the study of the spectral correlation coefficient along time among different Sublooks of the image ...
  • 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)
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    Carrying 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 novel strategy for radar imaging based on compressive sensing 

    Tello Alonso, Mª Victoria; López Dekker, Francisco J.; Mallorquí Franquet, Jordi Joan (2008)
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    This paper aims at introducing the recent theory of compressive sensing to radar imaging systems in order to retrieve the imaged scene with better resolution and a reduced amount of collected samples. As a result of ...
  • A novel strategy for radar imaging based on compressive sensing 

    Tello Alonso, Mª Victoria; López Dekker, Francisco J.; Mallorquí Franquet, Jordi Joan (2010-07-08)
    Article
    Accés obert
    This paper aims at introducing the recent theory of compressive sensing to radar imaging systems in order to retrieve the imaged scene with better resolution and a reduced amount of collected samples. As a result of ...
  • 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 ...
  • Application of TerraSAR-X data to the monitoring of urban subsidence in the city of Murcia 

    Mulas, Joaquín; Navarro Sánchez, Victor D.; Vicente, Fernando; Monells Miralles, Daniel; Centolanza, Giuseppe; Mallorquí Franquet, Jordi Joan; Duque Biarge, Sergio; López Dekker, Francisco J.; Tomás, Roberto; Herrera, Gerardo; López-Sánchez, Juan Manuel (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
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    This paper presents an analysis of the performance of TerraSAR-X for subsidence monitoring in urban areas. The city of Murcia has been selected as a test-site due to its high deformation rate and the set of extensometers ...
  • Application of the conjugate gradient method to a self-matching network for industrial microwave heating antennas 

    Mallorquí Franquet, Jordi Joan; Aguasca Solé, Alberto; Cardama Aznar, Ángel; Pages, R; Haro, J M (Institute of Electrical and Electronics Engineers (IEEE), 1999)
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    One of the main problems regarding the efficiency in a heating industrial system using high power microwaves is related with the uncontrolled changes on the load. These changes can be caused both by the different kinds of ...
  • ARBRES: Light-weight CW/FM SAR sensors for small UAVs 

    Aguasca Solé, Alberto; Acevo Herrera, René; Broquetas Ibars, Antoni; Mallorquí Franquet, Jordi Joan; Fabregas Canovas, Francisco Javier (2013-03-06)
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    This paper describes a pair of compact CW/FM airborne SAR systems for small UAV-based operation (wingspan of 3.5 m) for low-cost testing of innovative SAR concepts. Two different SAR instruments, using the C and X bands, ...
  • A Small Baseline DIFSAR Approach for Investigating Deformations on Full Resolution SAR Interferograms 

    Lanari, Ricardo; Mora Sacristan, Óscar; Manunta, Michele; Mallorquí Franquet, Jordi Joan; Berardino, P.; Sansoti, Eugenio (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-07-31)
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    This 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 ...
  • Assessment of polarimetric SAR interferometry for improving ship classification based on simulated data 

    Margarit Martín, Gerard; Mallorquí Franquet, Jordi Joan (MDPI Molecular Diversity Preservation International, 2008-12)
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    This paper uses a complete and realistic SAR simulation processing chain, GRECOSAR, to study the potentialities of Polarimetric SAR Interferometry (POLInSAR) in the development of new classification methods for ships. ...
  • 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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    Accés restringit per política de l'editorial
    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 refocus and feature extraction of single-look complex SAR signatures of vessels 

    Yam Ontiveros, Luis Eduardo; Mallorquí Franquet, Jordi Joan (2016)
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    In recent years, spaceborne synthetic aperture radar ( SAR) technology has been considered as a complement to cooperative vessel surveillance systems thanks to its imaging capabilities. In this paper, a processing chain ...
  • Automatic self-matching network for industrial microwave heating based on the conjugate gradient algorithm 

    Mallorquí Franquet, Jordi Joan; Aguasca Solé, Alberto; Cardama Aznar, Ángel; Pagès Serra, Romà; Haro Sánchez, Jose (IEE-INST ELEC ENG, 1999-02-28)
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    An automatic matching network has been implemented using a waveguide magic T with two sliding short circuit stubs whch are adjusted by a microcontroller running a conjugate gradient algorithm. The inclusion of this device ...