【摘要】 提出了一种新的分离入射波和反射波的解析方法(AM)。利用两点处的波高信息,运用Hilbert变换得到波浪信号在复域内的解析表达式,不需要计算合成波高和相位差即可实现信号的分离。根据分离结果,可以精确地估计入射波与反射波的幅值以及反射系数等参数,能够获得入射波与反射波之间的相位信息,并且可方便地用于不规则波的分离。文中通过数值模拟与物理模型实验对AM法进行了检验,所得的结果与实际值非常吻合。更多还原

【Abstract】 The paper presents an ana1ytical method (AM) to separate the composite waves into incident and ref1ected waves without calculating wave height and phase difference. Hilbert transform is first introduced to obtain the analytical expression of the signals in the real domain, then the separation can be achieved. From the separated incident and reflected waves, the amplitudes of incident and reflected waves and reflection coefficients can be easily obtained. Numerical samples to simulate the regular wave system are given and estimated values by AM agree well with the target values. Wave experiments are also conducted, and the reflection coefficients are given by using both AM and Goda′s method. It is shown that the new method is very easy and useful to estimate the ref1ection coefficient as compared with the other method. Furthermore, the reflection performance under the condition of irregular waves is also given.更多还原