改进的最大似然法在入反射波合成波浪场中应用研究

Research on application of modified maximum likelihood method in wave field overlapped by incident and reflected waves

模拟了多向不规则波入射波与反射波相互叠加的合成波浪场,应用改进的最大似然法(MMLM)对入射波与反射波的方向谱进行了分离,同时给出了反射系数的方向谱和综合反射系数.改变不同的波浪条件和仪器阵列的布置条件,检验了MMLM的有效性和可靠性.将此方法应用于基床直立堤反射的实验研究,取得了较好的结果.

The waves overlapped by incident and reflected multidirectional irregular waves are simulated. Directional spectrum and reflected coefficients of the incident and reflected waves are estimated by the modified maximum likelihood method(MMLM). The directional spectrum of reflected coefficients and bulk reflected coefficients are also computed. The credibility and validity of MMLM are checked by shifting wave condition and display of wave gauge array. The method is used to analyze directional spectrum and reflected coefficients of wave in front of sea wall model and the results are well.