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dc.contributor.authorValencia Domènech, Enric
dc.contributor.authorCamps Carmona, Adriano José
dc.contributor.authorMarchán Hernández, Juan Fernando
dc.contributor.authorBosch Lluís, Xavier
dc.contributor.authorRodríguez Álvarez, Nereida
dc.contributor.authorRamos Pérez, Isaac
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationValencia, E. [et al.]. Advanced architectures for real-time delay-doppler map GNSS-reflectometers: the GPS reflectometer instrument for PAU (griPAU). "Advances in space research", 15 Juliol 2010, vol. 46, núm. 2, p. 196-207.
dc.description.abstractIn recent years Global Navigation Satellite System’s signals Reflectometry (GNSS-R) has stood as a potential powerful remote sensing technique to derive scientifically relevant geophysical parameters such as ocean altimetry, sea state or soil moisture. This has brought out the need of designing and implementing appropriate receivers in order to track and process this kind of signals in real-time to avoid the storage of huge volumes of raw data. This paper presents the architecture and performance of the Global Positioning System (GPS) Reflectometer Instrument for PAU (griPAU), a real-time high resolution Delay-Doppler Map reflectometer, operating at the GPS L1 frequency with the C/A codes. The griPAU instrument computes 24 x 32 complex points DDMs with configurable resolution (DfDmin = 20 Hz, Dsmin = 0.05 chips) and selectable coherent (minimum = 1 ms, maximum = 100 ms for correlation loss Dq < 90%)and incoherent integration times (minimum of one coherent integration period and maximum not limited but typically <1 s). A high sensitivity (DDM peak relative error = 0.9% and DDM volume relative error = 0.03% @ Ti = 1 s) and stability (Dq/Dt = 1 s-1) have been achieved by means of advanced digital design techniques.
dc.format.extent12 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
dc.subject.lcshGlobal positioning system -- Data processing
dc.subject.lcshDelay-doppler map
dc.titleAdvanced architectures for real-time delay-doppler map GNSS-reflectometers: the GPS reflectometer instrument for PAU (griPAU)
dc.subject.lemacSistemes de possicionament globals
dc.subject.lemacgriPAU (radiòmetre)
dc.contributor.groupUniversitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorValencia, E.; Camps, A.; Marchan, J.; Bosch, X.; Rodriguez, N.; Ramos, I.
upcommons.citation.publicationNameAdvances in space research

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