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dc.contributor.authorFrasier, Stephen J.
dc.contributor.authorCamps Carmona, Adriano José
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2008-01-04T09:42:52Z
dc.date.available2008-01-04T09:42:52Z
dc.date.created1999-08-13
dc.date.issued2001-02-28
dc.identifier.citationFrasier, S. J.; Camps, A. Dual-beam interferometry for ocean surface current vector mapping. IEEE Transactions on geoscience and remote sensing, 2001, vol. 39, núm. 2, p. 401-414.
dc.identifier.issn0196-2892
dc.identifier.urihttp://hdl.handle.net/2117/1458
dc.description.abstractThe recent use of along-track interferometry (ATI) in synthetic aperture radar (SAR) has shown promise for synoptic measurement of ocean surface currents. ATI-SARs have been used to estimate wave fields, currents, and current features. This paper describes and analyzes a dual-beam along-track interferometer to provide spatially resolved vector surface velocity estimates with a single pass of an aircraft. The design employs a pair of interferometer beams, one squinted forward and one squinted aft. Each interferometric phase is sensitive to the component of surface Doppler velocity in the direction of the beam. Therefore, a proper combination of these measurements provides a vector surface velocity estimate in one pass of the aircraft. The authors find that precise measurements dictate widely spaced beams and that the spatial resolution for the squinted SAR is essentially identical to the sidelooking case. Practical instrument design issues are discussed, and an airborne system currently in development is described. Through computer simulation, they observe the azimuthal displacement of interferometric phases by moving surfaces identical to those of conventional SAR and find that such displacement can bias the estimated surface velocity.
dc.format.extent401-414
dc.language.isoeng
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
dc.subject.lcshInterferometry
dc.subject.lcshRemote sensing
dc.subject.otherairborne radar
dc.subject.otheroceanographic techniques
dc.subject.otherremote sensing by radar
dc.subject.othersynthetic aperture radar
dc.subject.otherSAR
dc.subject.otherairborne method
dc.subject.otheralong-track interferometer
dc.subject.otheralong-track interferometry
dc.subject.otherazimuthal displacement
dc.subject.otherdual-beam interferometry
dc.subject.otherdynamics
dc.subject.othermeasurement technique
dc.subject.othermoving surface
dc.subject.otherocean
dc.subject.otherradar interferometry
dc.subject.otherradar remote sensing
dc.subject.othersurface current
dc.subject.othersynoptic measurement
dc.subject.othersynthetic aperture radar
dc.subject.othervector mapping
dc.subject.othervector surface velocity
dc.titleDual-beam interferometry for ocean surface current vector mapping
dc.typeArticle
dc.subject.lemacInterferometria
dc.subject.lemacSensors remots
dc.contributor.groupUniversitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
local.personalitzacitaciotrue


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