【摘要】 本文扼要叙述了研究海浪二阶谱的意义,着重介绍了二阶谱的定义与概念,列举了现有几种估计二阶谱的方法,并对其周期图方法中相关函数的定义及推导过程作了更正。另外,我们用实测波面记录进行二阶谱估计,通过分析,得到了一些有益的结果。最后,本文对今后二阶谱的研究提出了一些设想。更多还原

【Abstract】 The paper introduces the definition and concept of bispectra and gives the methods of estimating them. The expression to define bi-autocorrelation function and the derivation of formula for tri-periodgram, used previously, are corrected. Bispectra are estimated from the records of wind-waves and satisfactory results are obtained. Finally, some suggestions for further studying bispectra are proposed,更多还原