Evaluation of Shipboard Wave Estimation Techniques through Model-scale Experiments

Ulrik Dam Nielsen; Roberto Galeazzi; Astrid H. Brodtkorb

doi:10.1109/OCEANSAP.2016.7485701

Evaluation of Shipboard Wave Estimation Techniques through Model-scale Experiments

Ulrik Dam Nielsen, Roberto Galeazzi, Astrid H. Brodtkorb

Norwegian University of Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

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 language	English
Title of host publication	Proceedings of OCEANS'16
Number of pages	8
Publisher	IEEE
Publication date	2016
ISBN (Electronic)	978-1-4673-9724-7
DOIs	https://doi.org/10.1109/OCEANSAP.2016.7485701
Publication status	Published - 2016
Event	OCEANS 2016 - Shanghai - Shanghai, China Duration: 10 Apr 2016 → 13 Apr 2016 https://ieeexplore.ieee.org/xpl/conhome/7480733/proceeding

Conference

Conference	OCEANS 2016 - Shanghai
Country/Territory	China
City	Shanghai
Period	10/04/2016 → 13/04/2016
Internet address	https://ieeexplore.ieee.org/xpl/conhome/7480733/proceeding

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10.1109/OCEANSAP.2016.7485701

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title = "Evaluation of Shipboard Wave Estimation Techniques through Model-scale Experiments",

abstract = "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.",

author = "Nielsen, {Ulrik Dam} and Roberto Galeazzi and {H. Brodtkorb}, Astrid",

year = "2016",

doi = "10.1109/OCEANSAP.2016.7485701",

language = "English",

booktitle = "Proceedings of OCEANS'16",

publisher = "IEEE",

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note = "OCEANS 2016 - Shanghai, OCEANS {\textquoteright}16 ; Conference date: 10-04-2016 Through 13-04-2016",

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AU - Galeazzi, Roberto

AU - H. Brodtkorb, Astrid

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

U2 - 10.1109/OCEANSAP.2016.7485701

DO - 10.1109/OCEANSAP.2016.7485701

M3 - Article in proceedings

BT - Proceedings of OCEANS'16

PB - IEEE

T2 - OCEANS 2016 - Shanghai

Y2 - 10 April 2016 through 13 April 2016

ER -

Evaluation of Shipboard Wave Estimation Techniques through Model-scale Experiments

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