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dc.contributor.authorAllotta, B.
dc.contributor.authorBianchi, M.
dc.contributor.authorFanelli, F.
dc.contributor.authorGelli, J.
dc.contributor.authorMonni, N.
dc.contributor.authorPagliai, M.
dc.contributor.authorPalma, N.
dc.contributor.authorRidolfi, A.
dc.identifier.citationAllotta, B. [et al.]. An IMU and USBL-aided buoy for underwater localization. A: MARINE VII. "MARINE VII : proceedings of the VII International Conference on Computational Methods in Marine Engineering". CIMNE, 2017, p. 449-460. ISBN 978-84-946909-8-3.
dc.description.abstractAutonomous underwater navigation remains, as of today, a challenging task. The marine environment limits the number of sensors available for precise localization, hence Au- tonomous Underwater Vehicles (AUVs) usually rely on inertial and velocity sensors to obtain an estimate of their position either through dead reckoning or by means of more sophisticated navigation filters (such as Kalman filters and its extensions [1]). On the other hand, acoustic localization makes possible the determination of a reliable vehicles pose estimate exploiting suit- able acoustic modems [3]; such estimate can even be integrated within the navigation filter of the vehicle in order to increase its accuracy. In this paper, the authors discuss the development and the performance of an Ultra-Short BaseLine (USBL)-aided buoy to improve the localization of underwater vehicles. At first, the components and the physical realization of the buoy will be discussed; then, the procedure to compute the position of the target will be analyzed. The following part of the paper will be focused on the development of a recursive state estimation algorithm to process the measurements computed by the buoy; specifically, Extended Kalman Filter [4] has been adopted to deal with the nonlinearities of the sensors housed on the buoy. A validation of the measurement filtering through experimental tests is also proposed.
dc.format.extent12 p.
dc.rightsOpen access
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subject.lcshFinite element method
dc.subject.lcshMarine engineering
dc.subject.otherUnderwater Robotics, Underwater Localization
dc.titleAn IMU and USBL-aided buoy for underwater localization
dc.typeConference report
dc.subject.lemacEnginyeria naval
dc.rights.accessOpen Access
local.citation.contributorMARINE VII
local.citation.publicationNameMARINE VII : proceedings of the VII International Conference on Computational Methods in Marine Engineering

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