Evaluation of Shipboard Wave Estimation Techniques through Model-scale Experiments

Ulrik Dam Nielsen, Roberto Galeazzi, Astrid H. Brodtkorb

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


The paper continues a study on the wave buoy analogy that uses shipboard measurements to estimate sea states. In the present study, the wave buoy analogy is formulated directly in the time domain and relies only partly on wave-vessel response amplitude operators (RAOs), which is in contrast to all previous works that either are formulated in the frequency domain and/or depend entirely on RAOs. Specifically, the paper evaluates a novel concept for wave estimation based on combined techniques using a wave frequency estimator, not dependent on RAOs, to detect wave frequency and, respectively, nonlinear least squares fitting to estimate wave amplitude and phase. The concept has been previously tested with only numerical simulations but in this study the techniques are applied to model-scale experiments. It is shown that the techniques successfully can be used to estimate the wave parameters of a regular wave train.
Original languageEnglish
Title of host publicationProceedings of OCEANS'16
Number of pages8
Publication date2016
ISBN (Electronic)978-1-4673-9724-7
Publication statusPublished - 2016
EventOCEANS 2016 - Shanghai - Shanghai, China
Duration: 10 Apr 201613 Apr 2016


ConferenceOCEANS 2016 - Shanghai
Internet address


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