Now showing items 1-9 of 9

  • A generic simulator for aperture synthesis radiometers 

    Camps Carmona, Adriano José; Hyuk, Park; Barbosa Torralbo, José; Bandeiras, J.; D'Addio, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
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    ESA's SMOS mission has demonstrated that Synthetic Aperture Interferometric Radiometers can be a useful tool for Earth observation. Today, the NASA's GeoStar instrument (USA), ESA's GAS instrument (Europe), or CSSAR's GIMS ...
  • Altimetry performance and error budget of the PARIS in-orbit demonstration mission 

    Camps Carmona, Adriano José; Pascual Biosca, Daniel; Hyuk, Park; Martín Alemany, Francisco; Rius, Antonio; Ribó Vedrilla, Serni; Benito, Javier; Andrés, A.; Saameno, Paula; Staton, Gavin; Martín Neira, Manuel; D'Addio, Salvatore; Willemsen, P. (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
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    Reflectometry using Global Navigation Satellite System's signals of opportunity (GNSS-R) was originally conceived for mesoscale altimetry [1], although its applicability to sea state determination, soil moisture, vegetation, ...
  • Consolidating the precision of interferometric GNSS-R ocean altimetry using airborne experimental data 

    Cardellach, Estel; Rius, Antonio; Martín Neira, Manuel; Fabra Cervellera, Fran; Nogués Correig, O.; Ribó Vedrilla, Serni; Kainulainen, Juha; Camps Carmona, Adriano José; D'Addio, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2014-08)
    Article
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    This paper revises the precision of altimetric measurements made with signals of the Global Navigation Satellite Systems (GNSS) reflected (GNSS-R) off the sea surface. In particular, we investigate the performance of two ...
  • Cross-correlation waveform mode: a critical review 

    Martín Alemany, Francisco; Hyuk, Park; Camps Carmona, Adriano José; D'Addio, Salvatore; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
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    Earth-reflected Global Navigation Satellite System (GNSS) signals have become an attractive tool for remote sensing. Recently it has been proposed as an alternative to the conventional altimetry to estimate the surface ...
  • GNSS-R altimeter based on Doppler multi-looking 

    D'Addio, Salvatore; Martín Neira, Manuel; di Bisceglie, Maurizio; Galdi, Carmela; Martín Alemany, Francisco (2014-05-01)
    Article
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    Measuring ocean mesoscale variability is one of the main objectives of next generation satellite altimeters. Current radar altimeters make observations only at the nadir sub-satellite ground track, which is not sufficient ...
  • GNSS-R altimeter performance: analysis of Cramer-Rao lower bounds 

    D'Addio, Salvatore; Martín Neira, Manuel; Martín Alemany, Francisco; Hyuk, Park; Camps Carmona, Adriano José (2012)
    Conference report
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    Earth-reflected Global Navigation Satellite Systemsignals have become an attractive tool for remote sensing, being proposed as a means to perform ocean altimetry, among many other applications. The technique exploiting ...
  • Modeling and analysis of GNSS-R waveforms sample-to-sample correlation 

    Martín Alemany, Francisco; D'Addio, Salvatore; Camps Carmona, Adriano José; Martín Neira, Manuel (2014-05-01)
    Article
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    The exploitation of global navigation satellite systems Earth-reflected signals to perform ocean mesoscale altimetry from space has been originally proposed at the beginning of the 1990s. This technique is generally defined as
  • Optimization and performance analysis of interferometric GNSS-R altimeters: application to the PARIS IoD mission 

    Camps Carmona, Adriano José; Hyuk, Park; Valencia Domènech, Enric; Pascual Biosca, Daniel; Martín Alemany, Francisco; Rius Jordán, Antonio; Ribó Vedrilla, Serni; Benito, Javier; Andres-Beivide, Ana; Saameno, Paula; Staton, Gavin; Martín Neira, Manuel; D'Addio, Salvatore; Willemsen, Philip (2014-05-01)
    Article
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    Reflectometry using Global Navigation Satellite System's signals (GNSS-R) of opportunity was originally conceived in the early 1990 s for mesoscale altimetry, and since then, many studies have shown its applicability to ...
  • SAIRPS: a generic simulator for evaluation of synthetic aperture interferometric radiometers 

    Camps Carmona, Adriano José; Hyuk, Park; Kang, Yujin; Barbosa, José; Bandeiras, J.; Vieira, Paula; Friaças, Ana; D'Addio, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    ESA's SMOS mission has been a cornerstone in passive Earth Observation, since it has provided for the first time ever with global and frequent observations of Soil Moisture and Ocean Salinity (where the mission acronym ...