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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.
In this paper, the first part of the study on the statistical properties of wave groups is reported. The definition of the physical quantities describing the height and weakness of the wave groups - the definition of the wave group height is presented. The formulas of the zero order moments and the zero order moments of the wave spectrum are given Column root mean squared root height and relative root mean square relative height of the two groups of highly statistical features of the method of which the wave packet spectrum can be estimated by means of Hilbert transform from the wave height record obtained using the irregular wave wave system generated in the sink Of wave groups with different groups were verified.The results of the verification are satisfactory.