Application of a Hilbert Transform-Based Algorithm for Parameter Estimation of a Nonlinear Ocean System Roll Model
- 1 November 1997
- journal article
- Published by ASME International in Journal of Offshore Mechanics and Arctic Engineering
- Vol. 119 (4), 239-243
- https://doi.org/10.1115/1.2829102
Abstract
We combine an averaging procedure with a Hilbert transform-based algorithm for parameter estimation of a nonlinear ocean system roll model. System backbone curves obtained from data are compared to those obtained analytically and are found to be accurate. Sensitivity of the results is tested by introducing random noise to a nonlinear model describing roll response of a small fishing boat. An example field calibration test of a small semisubmersible exhibiting nonlinear damping is also considered.Keywords
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