Experimental Verification of a Global Exponentially Stable Nonlinear Wave Encounter Frequency Estimator

Dennis J.W. Belleter; Roberto Galeazzi; Thor Inge Fossen

doi:10.1016/j.oceaneng.2014.12.030

Experimental Verification of a Global Exponentially Stable Nonlinear Wave Encounter Frequency Estimator

Dennis J.W. Belleter, Roberto Galeazzi, Thor Inge Fossen

Norwegian University of Science and Technology

Research output: Contribution to journal › Journal article › Research › peer-review

685 Downloads (Pure)

Abstract

This paper presents a global exponential stability (GES) proof for a signalbased nonlinear wave encounter frequency estimator. The estimator under consideration is a second-order nonlinear observer designed to estimate the frequency of a sinusoid with unknown frequency, amplitude and phase. The GES proof extends previous results that only guarantee global K-exponential stability. Typical applications are control and decision-support systems for marine craft, where it is important to know the sea state and wave frequency. The theoretical results are verified experimentally by analyzing data from towing tank experiments using a container ship scale model. The estimates for both regular and irregular waves confirm the results. Finally, the estimator is applied to full-scale data gathered from a container ship operating in the Atlantic Ocean during a storm. Again the theoretical results are confirmed.

Original language	English
Journal	Ocean Engineering
Volume	97
Pages (from-to)	48–56
ISSN	0029-8018
DOIs	https://doi.org/10.1016/j.oceaneng.2014.12.030
Publication status	Published - 2015

Keywords

Nonlinear observer
Marine systems
Sea-state estimation

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.oceaneng.2014.12.030

OceanEngineering BelletterGaleazziFossen 2015Submitted manuscript, 2.75 MB

OpenUrl availability

Full text

Cite this

@article{59ca6eaea27244fb90c02e5daa9b6adb,

title = "Experimental Verification of a Global Exponentially Stable Nonlinear Wave Encounter Frequency Estimator",

abstract = "This paper presents a global exponential stability (GES) proof for a signalbased nonlinear wave encounter frequency estimator. The estimator under consideration is a second-order nonlinear observer designed to estimate the frequency of a sinusoid with unknown frequency, amplitude and phase. The GES proof extends previous results that only guarantee global K-exponential stability. Typical applications are control and decision-support systems for marine craft, where it is important to know the sea state and wave frequency. The theoretical results are verified experimentally by analyzing data from towing tank experiments using a container ship scale model. The estimates for both regular and irregular waves confirm the results. Finally, the estimator is applied to full-scale data gathered from a container ship operating in the Atlantic Ocean during a storm. Again the theoretical results are confirmed.",

keywords = "Nonlinear observer, Marine systems, Sea-state estimation",

author = "Belleter, {Dennis J.W.} and Roberto Galeazzi and Fossen, {Thor Inge}",

year = "2015",

doi = "10.1016/j.oceaneng.2014.12.030",

language = "English",

volume = "97",

pages = "48–56",

journal = "Ocean Engineering",

issn = "0029-8018",

publisher = "Pergamon Press",

}

TY - JOUR

T1 - Experimental Verification of a Global Exponentially Stable Nonlinear Wave Encounter Frequency Estimator

AU - Belleter, Dennis J.W.

AU - Galeazzi, Roberto

AU - Fossen, Thor Inge

PY - 2015

Y1 - 2015

N2 - This paper presents a global exponential stability (GES) proof for a signalbased nonlinear wave encounter frequency estimator. The estimator under consideration is a second-order nonlinear observer designed to estimate the frequency of a sinusoid with unknown frequency, amplitude and phase. The GES proof extends previous results that only guarantee global K-exponential stability. Typical applications are control and decision-support systems for marine craft, where it is important to know the sea state and wave frequency. The theoretical results are verified experimentally by analyzing data from towing tank experiments using a container ship scale model. The estimates for both regular and irregular waves confirm the results. Finally, the estimator is applied to full-scale data gathered from a container ship operating in the Atlantic Ocean during a storm. Again the theoretical results are confirmed.

AB - This paper presents a global exponential stability (GES) proof for a signalbased nonlinear wave encounter frequency estimator. The estimator under consideration is a second-order nonlinear observer designed to estimate the frequency of a sinusoid with unknown frequency, amplitude and phase. The GES proof extends previous results that only guarantee global K-exponential stability. Typical applications are control and decision-support systems for marine craft, where it is important to know the sea state and wave frequency. The theoretical results are verified experimentally by analyzing data from towing tank experiments using a container ship scale model. The estimates for both regular and irregular waves confirm the results. Finally, the estimator is applied to full-scale data gathered from a container ship operating in the Atlantic Ocean during a storm. Again the theoretical results are confirmed.

KW - Nonlinear observer

KW - Marine systems

KW - Sea-state estimation

U2 - 10.1016/j.oceaneng.2014.12.030

DO - 10.1016/j.oceaneng.2014.12.030

M3 - Journal article

SN - 0029-8018

VL - 97

SP - 48

EP - 56

JO - Ocean Engineering

JF - Ocean Engineering

ER -

Experimental Verification of a Global Exponentially Stable Nonlinear Wave Encounter Frequency Estimator

Abstract

Keywords

UN SDGs

Access to Document

OpenUrl availability

Fingerprint

Cite this