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| dc.contributor | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
|---|---|
| dc.contributor | Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
| dc.contributor.author | Valencia Domènech, Enric |
| dc.contributor.author | Camps Carmona, Adriano José |
| dc.contributor.author | Marchán Hernández, Juan Fernando |
| dc.contributor.author | Bosch Lluís, Xavier |
| dc.contributor.author | Rodríguez Álvarez, Nereida |
| dc.contributor.author | Ramos Pérez, Isaac |
| dc.date | 2010-07-15 |
| dc.identifier.citation | Valencia, 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.identifier.citation | 0273-1177 |
| dc.identifier.citation | 10.1016/j.asr.2010.02.002 |
| dc.identifier.uri | http://hdl.handle.net/2117/13137 |
| dc.description.abstract | In 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.description.abstract | Peer Reviewed |
| dc.language.iso | eng |
| dc.relation | http://linkinghub.elsevier.com/retrieve/pii/S0273117710000876 |
| dc.rights | info:eu-repo/semantics/openAccess |
| dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció |
| dc.subject | Global positioning system -- Data processing |
| dc.subject | GNSS-R |
| dc.subject | Delay-doppler map |
| dc.subject | Sistemes de possicionament globals |
| dc.subject | Radiometria |
| dc.subject | griPAU (radiòmetre) |
| dc.title | Advanced architectures for real-time delay-doppler map GNSS-reflectometers: the GPS reflectometer instrument for PAU (griPAU) |
| dc.type | info:eu-repo/semantics/publishedVersion |
| dc.type | info:eu-repo/semantics/article |
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