Enviaments recents

  • Unified GNSS-R formulation including coherent and incoherent scattering components 

    Carreño Luengo, Hugo; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    Global Navigation Satellite Systems Reflectometry (GNSSR) is a sort of multi-static radar using navigation signals as signals of opportunity. Due to the large number of transmitting satellites multiple scattering points ...
  • Simulation of FMCW radar systems based on software defined radio 

    López Martínez, Carlos; Vidal Morera, Marc (2016)
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    This work address the implementation of a Frequency Modulated Continuous Wave radar based on Software Defined Radio. In particular, we have simulated a USRP device implementing the radar system, in order to determine the ...
  • Constraints in azimuth resolution by refocusing slowly moving targets from single-look complex SAR vignettes 

    Yam Ontiveros, Luis Eduardo; Mallorquí Franquet, Jordi Joan; Rius Casals, Juan Manuel (VDE Conference Publications, 2014)
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    Accessing the raw data of spaceborne SAR systems is not always possible to refocus blurred SAR signatures of vessels. Instead, the single-look complex (SLC) data is usually more available, but since the vessel motion can ...
  • Iterative solution to temporal phase wrapping in differential SAR interferometry for high displacement rate phenomena 

    Monells Miralles, Daniel; Iglesias González, Rubén; Centolanza, Giuseppe; Mallorquí Franquet, Jordi Joan (VDE Conference Publications, 2014)
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    Temporal phase wrapping may be an issue in Differential SAR Interferometry (DInSAR) for terrain displacement monitoring, especially when the deformation rate of the phenomena under observation is high and/or the temporal ...
  • Down-slope combination of orbital and ground-based DInSAR for the efficient monitoring of slow-moving landslides 

    Iglesias González, Rubén; Monells Miralles, Daniel; Centolanza, Giuseppe; Mallorquí Franquet, Jordi Joan; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto (VDE Conference Publications, 2014)
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    This paper seeks to demonstrate that radar-based remote sensing techniques are as effective as conventional geotechnical ones for geo-hazard assessment and mitigation. Concretely, this work encourages the proper combination ...
  • Track compensation and calibration of continuous monitoring GEOSAR missions 

    Broquetas Ibars, Antoni; Casado, David; Martín, Roger; Fernández Usón, Marc; Monti Guarnieri, Andrea; Leanza, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    The paper analyzes the problem of achieving a coherent operation in Geostationary SAR (GEOSAR) missions intended for continuous monitoring of land surfaces. In contrast to LEOSAR missions, GEOSAR uses very long SAR integration ...
  • The use of the L2-norm for the analysis of texture on PolSAR data 

    Deng, Xinping; López Martínez, Carlos (VDE-Verlag, 2016)
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    The use of the l2-norms of the scattering vectors is suggested to texture analysis of PolSAR data, with the benefits that neither we need to analyze the polarimetric channels separately, nor we need to filter the data to ...
  • Evaluation of a bilateral filtering approach for tomographic SAR denoising 

    D'Hondt, Olivier; Guillaso, Stephane; López Martínez, Carlos; Hellwich, Ollaf (VDE-Verlag, 2016)
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    This work proposes to evaluate the effects of a spatially adaptive filter called NDSAR-BLF (N-Dimensional SAR Bilateral Filter) on scatterer separation and height estimation from SAR tomograms. We have developed a spatial ...
  • On the amount of information content in microwave radiometry for wet delay correction 

    Gual de Torrellas, José María; Camps Carmona, Adriano José (Aalto University, 2016)
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    The scope of this work is the determination of the set of optimum frequencies to be used in the companion microwave radiometers in future synthetic aperture radar altimeters, to provide higher spatial resolution of the ...

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