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Information on Titan's Surface From Cassini Radar Altimeter Waveforms

hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorCALLAHAN, P. S.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorHENSLEY, S.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorGIM, Y.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorJOHNSON, W. T.
hal.structure.identifierJohns Hopkins University Applied Physics Laboratory [Laurel, MD] [APL]
dc.contributor.authorLORENZ, R. D.
hal.structure.identifierConsorzio di Ricerca Sistemi di Telesensori Avanzati
dc.contributor.authorALBERTI, Giovanni
hal.structure.identifierCNR-IASF
dc.contributor.authorOROSEI, R.
hal.structure.identifierDipartimento INFOCOM [Roma]
dc.contributor.authorSEU, R.
hal.structure.identifierFacoltá di Ingegneria
dc.contributor.authorFRANCESCHETTI, G.
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorPAILLOU, Philippe
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorPAGANELLI, F.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorWALL, S.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorWEST, R. D.
dc.date.conference2006
dc.description.abstractEnWe have examined range-compressed waveforms from the Cassini Radar operating in altimeter mode (Ku band, bandwidth 4.25 MHz, nadir pointing) during observations of Titan. We find that leading edge detection provides a straight forward determination of a maximum surface height. The heights from the set of observations give a mean radius of Titan about 0.5 km larger than the nominal 2575+/-0.5 km determined from Voyager. The altimeter footprint diameter is about 25 km on the surface and thus represents an average over the terrain. The waveforms are complex beyond the leading edge. We have performed simulations over various sized dunes and other terrain and find reasonable agreement with the signal observed from several regions, consistent with the published report of dunes. We have developed several measures of waveform width and complexity to characterize the surface. We display the consistency among these measures and compare them to other characterizations of the surface.
dc.language.isoen
dc.subject.en5464 Remote sensing
dc.subject.en5470 Surface materials and properties
dc.subject.en5494 Instruments and techniques
dc.title.enInformation on Titan's Surface From Cassini Radar Altimeter Waveforms
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
bordeaux.countryUS
bordeaux.peerReviewedoui
hal.identifierhal-00405516
hal.version1
hal.invitednon
hal.proceedingsnon
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00405516v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=CALLAHAN,%20P.%20S.&HENSLEY,%20S.&GIM,%20Y.&JOHNSON,%20W.%20T.&LORENZ,%20R.%20D.&rft.genre=unknown


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