Hilbert变换在波群统计中的应用——Ⅰ.波群群高

基金项目: 国家自然科学基金

摘要: 本文报告波群统计特性研究结果的第一部分.提出了描述波群高低和强弱特性的物理量——波群高度的定义,并给出由波包谱零阶矩和波面谱零阶矩计算波列均方根群高和均方根相对群高两个波群高度统计特征量的方法.其中波包谱的估计可借助于Hilbert变换由波面高度记录得到.利用不规则波造波系统在水槽内产生的具有不同群性的波列作了验证.验证结果是令人满意的.

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