Parametric and non-parametric spectral descriptions are used to estimate the wave spectra from wave frequency motions of a vessel at low advance speed, using minimization procedures based on a constrained gradient search and a genetic algorithm. The parametric description provides smooth power spectral energies as a result of the analytic spectral description. The non-parametric requires a smoothing post processing if very good readability is needed. It has been concluded that the non-parametric description is faster, more robust to model errors and likely to be a better formulation for adaptive algorithms.
- Ocean, Offshore and Arctic Engineering Division
Ocean Wave Spectral Estimation Using Vessel Wave Frequency Motions
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Pascoal, R, Guedes Soares, C, & So̸rensen, AJ. "Ocean Wave Spectral Estimation Using Vessel Wave Frequency Motions." Proceedings of the ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 2. Halkidiki, Greece. June 12–17, 2005. pp. 337-345. ASME. https://doi.org/10.1115/OMAE2005-67584
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