Now showing items 1-20 of 117

    • 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)
      Article
      Open Access
      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)
      Conference report
      Open Access
      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 ...
    • A direct method to estimate atmospheric phase delay for insar with global atmospheric models 

      Hu, Zhongbo; Mallorquí Franquet, Jordi Joan (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference lecture
      Restricted access - publisher's policy
      Differential Interferometric Synthetic Aperture Radar (DInSAR) has proved its unprecedented advantages of monitoring ground deformation on large scale with centimeter to millimeter precision in the last two decades. However, ...
    • 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)
      Conference report
      Restricted access - publisher's policy
      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)
      Conference report
      Restricted access - publisher's policy
      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)
      Article
      Open Access
      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)
      Conference report
      Open Access
      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
      Open Access
      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 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)
      Article
      Open Access
      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 ...
    • A temporal phase coherence estimation algorithm 

      Zhao, Feng; Mallorquí Franquet, Jordi Joan (VDE Conference Publications, 2018)
      Conference report
      Restricted access - publisher's policy
      Pixel selection is a critical procedure in DInSAR processing. In this paper a new temporal phase coherence (TPC) estimation algorithm is proposed for the pixel selection. TPC is calculated based on the estimated interferometric ...
    • A temporal phase coherence estimation algorithm and its application on DInSAR pixel selection 

      Zhao, Feng; Mallorquí Franquet, Jordi Joan (Institute of Electrical and Electronics Engineers (IEEE), 2019-11-01)
      Article
      Open Access
      Pixel selection is a crucial step of all advanced Differential Interferometric Synthetic Aperture Radar (DInSAR) techniques that have a direct impact on the quality of the final DInSAR products. In this paper, a full-resolution ...
    • 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)
      Article
      Restricted access - publisher's policy
      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)
      Article
      Open Access
    • 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)
      Conference report
      Open Access
      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)
      Conference report
      Open Access
      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 ...
    • An accurate method to correct atmospheric phase delay for InSAR with the ERA5 global atmospheric model 

      Hu, Zhongbo; Mallorquí Franquet, Jordi Joan (Multidisciplinary Digital Publishing Institute (MDPI), 2019-08-11)
      Article
      Open Access
      Differential SAR Interferometry (DInSAR) has proven its unprecedented ability and merits of monitoring ground deformation on a large scale with centimeter to millimeter accuracy. However, atmospheric artifacts due to spatial ...
    • An adaptive multilooking scheme for multi-temporal insar data 

      Zhao, Feng; Mallorquí Franquet, Jordi Joan (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Multilooking is an effective speckle reduction tool for InSAR images. However, it has some limitations. Based on the De-specKS and NL-SAR algorithms, an adaptive multilooking scheme for multi-temporal InSAR data has been ...
    • An adaptive scattering-mechanism-based filtering for multi-temporal pol(In)SAR data 

      Zhao, Feng; Mallorquí Franquet, Jordi Joan (VDE Conference Publications, 2018)
      Conference report
      Restricted access - publisher's policy
      This 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 ...
    • 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 policy
      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)
      Conference report
      Open Access
      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 ...