Ara es mostren els items 8-16 de 16

    • Feasibility of geosynchronous satellites for synthetic aperture radar remote sensing at Ka-BAND 

      Ruiz, Josep; González, Alba; Broquetas Ibars, Antoni; Monti Guarnieri, Andrea; Carcano, Laura; Fideli, Giorgio; Rocca, Fabbio (European Space Agency (ESA), 2010)
      Text en actes de congrés
      Accés restringit per decisió de l'autor
      This document presents the conceptual design and analysis of a Synthetic Aperture Radar (SAR) system based on geosynchronous satellites (GEOSAR) working at Ka-band. These satellites, apparently orbiting in a fixed position ...
    • G-CLASS: geosynchronous radar for water cycle science – orbit selection and system design 

      Hobbs, Stephen E.; Monti Guarnieri, Andrea; Broquetas Ibars, Antoni; Calvet, Jean-Christophe; Casagli, Nicola; Chini, Marco; Ferretti, Rossella; Nagler, Thomas; Pierdicca, Nazzareno; Prudhomme, Christel; Wadge, Geoff (John Wiley & sons, 2019-11)
      Article
      Accés obert
      The mission geosynchronous – continental land atmosphere sensing system (G-CLASS) is designed to study thediurnal water cycle, using geosynchronous radar. Although the water cycle is vital to human society, processes on ...
    • GEMINI: geosynchronous SAR for Earth monitoring by interferometry and imaging 

      Monti Guarnieri, Andrea; Tebaldini, Stefano; Rocca, Fabio; Broquetas Ibars, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper we discuss a preliminary design for a constellation of geosynchronous (GEO) Synthetic Aperture Radars (SAR). The key design concept is to employ one or more pairs of closely-spaced twin receivers flown ...
    • Impact of clutter decorrelation on Geosynchronous SAR 

      Recchia, Andrea; Monti Guarnieri, Andrea; Broquetas Ibars, Antoni; Ruiz Rodon, Josep (VDE Conference Publications, 2014)
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      We discuss the effects of the clutter on a Geosynchronous SAR system exploiting long integration times (from minutes to hours) to counteract for spread losses and increase azimuth resolution. Only stable targets will be ...
    • Impact of scene decorrelation on geosynchronous SAR data focusing 

      Recchia, Andrea; Monti Guarnieri, Andrea; Broquetas Ibars, Antoni; Leanza, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2016-03-01)
      Article
      Accés obert
      We discuss the effects of the clutter on geosynchronous SAR systems exploiting long integration times (from minutes to hours) to counteract for two-way propagation losses and increase azimuth resolution. Only stable targets ...
    • Internal clutter motion impact on the long integration GEOSAR acquisition 

      Ruiz Rodon, Josep; Broquetas Ibars, Antoni; Makul, Eduardo; Monti Guarnieri, Andrea; Recchia, Andrea (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      In this paper, the impact of the internal clutter motion in GEOSAR acquisitions is analyzed. A nearly zero inclination with low eccentricity geosynchronous orbit is considered and, therefore, long integration, in order of ...
    • Nearly zero inclination geosynchronous SAR mission analysis with long integration time for earth observation 

      Ruiz Rodon, Josep; Broquetas Ibars, Antoni; Makhoul Varona, Eduardo; Monti Guarnieri, Andrea; Rocca, Fabio (Institute of Electrical and Electronics Engineers (IEEE), 2014-10-01)
      Article
      Accés restringit per política de l'editorial
      In this paper, the performance of a nearly zero inclination and low eccentricity geosynchronous synthetic aperture radar (GEOSAR) mission for midlatitude (30 degrees-60 degrees) Earth observation is analyzed. The slow ...
    • Results on spatial-temporal atmospheric phase screen retrieval from long-term GEOSAR acquisition 

      Ruiz Rodon, Josep; Broquetas Ibars, Antoni; Makhoul Varona, Eduardo; Monti Guarnieri, Andrea; Rocca, Fabbio (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, a high integration gain GEOSAR mission for Earth imaging is presented. The spatial-temporal atmospheric decorrelation issues of a long integration time GEOSAR mission must be carefully studied. The ...
    • 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)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      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 ...