Sea state estimation using multiple ships simultaneously as sailing wave buoys

UD Nielsen, AH Brodtkorb, AJ Sørensen - Applied Ocean Research, 2019 - Elsevier
The article presents initial ideas towards a network-based approach for sea state estimation
used for marine operations and other maritime applications. In principle, all available …

Estimation of sea state parameters by the wave buoy analogy with comparisons to third generation spectral wave models

UD Nielsen, J Dietz - Ocean Engineering, 2020 - Elsevier
This paper presents a study focused on sea state estimation along the route of an in-service
container ship. The paper is concerned with the wave buoy analogy in which wave-induced …

[HTML][HTML] Deriving spatial wave data from a network of buoys and ships

REG Mounet, J Chen, UD Nielsen, AH Brodtkorb… - Ocean …, 2023 - Elsevier
The real-time provision of high-quality estimates of the ocean wave parameters at
appropriate spatial resolutions are essential for the sustainable operations of marine …

[HTML][HTML] A phase-time-path-difference approach for online wave direction and wave number estimation from measured ship motions in zero and forward speed using a …

JA Dirdal, R Skjetne, J Roháč, TI Fossen - Ocean Engineering, 2023 - Elsevier
This study investigates the potential capability of a relatively new and unexplored signal-
based approach for shipboard wave estimation. The approach uses the phase-time-path …

[HTML][HTML] Online wave direction and wave number estimation from surface vessel motions using distributed inertial measurement arrays and phase-time-path …

JA Dirdal, R Skjetne, J Roháč, TI Fossen - Ocean Engineering, 2022 - Elsevier
A common approach for finding the direction of ocean waves is to use the phase-time-path-
differences (PTPDs) between a static array of various types of sensors mounted on either the …

Ocean wave spectrum estimation using measured vessel motions from an in-service container ship

UD Nielsen, J Dietz - Marine Structures, 2020 - Elsevier
This article is about the use of measured wave-induced vessel motions for estimation of
ocean wave spectra by application of the wave buoy analogy. In the study, data from a …

Improving the performance of dynamic ship positioning systems: A review of filtering and estimation techniques

D Selimović, J Lerga, J Prpić-Oršić, S Kenji - Journal of marine science …, 2020 - mdpi.com
Various operations at sea, such as maintaining a constant ship position and direction,
require a complex control system. Under such conditions, the ship needs an efficient …

Assessment of damping coefficients of power take-off systems of wave energy converters: A hybrid approach

CA Rodríguez, P Rosa-Santos, F Taveira-Pinto - Energy, 2019 - Elsevier
The damping coefficient of the power take-off (PTO) system is a key parameter in the
performance assessment of a wave energy converter (WEC). However, since in most WEC …

Estimating wave spectra from the motions of dynamically positioned vessels: An assessment based on model tests

GA Bisinotto, PC de Mello, AN Queiroz Filho… - Applied Ocean …, 2022 - Elsevier
Alternatives for estimating the directional wave spectrum from the motions of a vessel have
been evaluated over the past years considering different statistical approaches. This paper …

Sea state estimation based on the motion data of a moored FPSO using neural networks: An evaluation with multiple draft conditions

GA Bisinotto, JV Sparano, AN Simos, FG Cozman… - Ocean …, 2023 - Elsevier
Useful information for offshore systems can be obtained by monitoring sea state parameters,
but the accurate estimation of the on-site wave condition is challenging. This paper deals …