dc.contributor.author | Pascoal, R | |
dc.contributor.author | Perera, Lokukaluge Prasad | |
dc.contributor.author | Guedes Soares, Carlos | |
dc.date.accessioned | 2017-11-02T18:06:50Z | |
dc.date.available | 2017-11-02T18:06:50Z | |
dc.date.created | 2017-02-06T15:59:28Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0029-8018 | |
dc.identifier.uri | http://hdl.handle.net/11250/2463832 | |
dc.description.abstract | This paper compares the skill of two algorithms that enable real-time estimation of the directional wave spectra exciting a ship from its measured motions. One algorithm consists of a nonlinear optimization of a parametric or non-parametric spectral model and the other is a Kalman filter based observer. Sea trials have been conducted on an oceanographic vessel that was instrumented with a six degree of freedom fiber optic gyro, complemented with a rate gyro, several accelerometers, a dedicated GPS receiver and a bow mounted down-looking wave radar with motion compensation. The two algorithms are applied to the measured data and a discussion is provided on their skill to recover the properties of existing sea states. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.rights | Navngivelse-Ikkekommersiell-DelPåSammeVilkår 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/deed.no | * |
dc.subject | Wave spectra | nb_NO |
dc.subject | Spectral estimation | nb_NO |
dc.subject | Vessel motions | nb_NO |
dc.subject | Kalman Filtering | nb_NO |
dc.subject | Sea trials | nb_NO |
dc.title | Estimation of Directional Sea Spectra from Ship Motions in Sea Trials | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.journal | Ocean Engineering | nb_NO |
dc.identifier.doi | 10.1016/j.oceaneng.2017.01.020 | |
dc.identifier.cristin | 1447530 | |
dc.relation.project | Norges forskningsråd: 237917 | nb_NO |
cristin.unitcode | 7566,7,0,0 | |
cristin.unitname | Maritim | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |