一、前言随着海洋资源的开发利用和海洋观测技术的不断更新,海浪方向谱的研究日益受到重视.海浪方向谱,由于它能同时描述海浪能量随频率和方向的分布,故已成为合理计算海上水工建筑物作用力的可靠依据.特别是方向谱能给出不同方向组成波的能量变化,更有助于了解海浪的细微结构及其产生过程.因此,海浪方向谱的研究不仅直接关系到海洋工程的投资效益,而且对海浪生成机制的研究也有重要意义. I. INTRODUCTION With the development and utilization of ocean resources and the continuous updating of ocean observation techniques, the research on the direction of ocean waves has been paid more and more attention. The direction of ocean waves, as it can simultaneously describe the distribution of ocean waves with frequency and direction, has become a reasonable calculation The reliable basis for the hydraulic forces acting on the offshore structures, especially the directional spectra can give the energy variations of the waves in different directions, and help to understand the subtle structure of the waves and their generation process. Therefore, the study of the direction of the waves is not only directly related To the investment benefit of ocean engineering, but also to the research of ocean wave generating mechanism is also of great significance.