CHAPTER 3 PRACTICAL COMPARATIVE PERFORMANCE SURVEY OF METHODS USED FOR ESTIMATING DIRECTIONAL WAVE SPECTRA FROM HEAVE-PITCH-ROLL DATA
CHAPTER 3 PRACTICAL COMPARATIVE PERFORMANCE SURVEY OF METHODS USED FOR ESTIMATING DIRECTIONAL WAVE SPECTRA FROM HEAVE-PITCH-ROLL DATA
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第 3 章 用于根据起伏-俯仰-横滚数据估计方向波谱的方法的实际比较性能调查
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发表时间：
2010
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通讯作者：
M. Benoit
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作者：
M. Benoit
在实际的数值模拟中，比较了12种从重涡资料中估计方向波谱的方法。这些方法基于不同的建模方法，包括简单和复杂的建模方法：傅立叶级数分解、单峰或双峰参数模型的拟合、变分拟合技术、最大似然方法、特征向量法、最大熵方法和贝叶斯方法。从估计误差、计算时间、实现难度等实际方面进行了比较。这项研究必须被视为致力于选择可操作的现场测量的最佳方法的初步步骤。
Twelve methods used for estimating the directional wave spectrum from heavepitch-roll data are compared on realistic numerical simulations. These methods are based on different modelling approaches including simple and sophisticated ones : Fourier Series decomposition, Fit to unimodal or bimodal parametric models, Variational fitting technique, Maximum Likelihood Methods, Eigenvector Methods, Maximum Entropy Methods and Bayesian approach. The comparison is performed in terms of practical aspects such as estimation error, computation time, implementation difficulty... This study must be regarded as a preliminary step devoted to the choice of optimal methods for operational in situ measurements.