中文摘要：

海面作为众多学科的交叉研究对象，其研究受到广泛关注，现阶段海面的仿真和分析主要是以外部海面风速为参数．而没有用内部参数分析粗糙海面。为了解决这个问题，借鉴理想随机粗糙面均方根高度和相关长度的定义，提出了粗糙海面等效均方根高度和等效相关长度的概念，给出了两者的计算方法，并通过仿真，验证了计算方法的正确性。利用上述计算方法，计算了不同风速PM粗糙海面对应的等效均方根高度和等效相关长度，得出了两者均会随着风速的增大而呈现类二次函数增加的关系，但不会随风速无限增长。用等效均方根高度和等效相关长度分析了海面上方10m处风速分别为10m／s和5m／s的粗糙海面，分析了对应的粗糙海面外部轮廓特征产生的原因。

英文摘要：

The existing simulation and analysis of the sea surface are mainly based on the external surface wind speed, while the internal parameters of the rough sea surface have not been used. In order to solve this problem, the concept of equivalent RMS height and equivalent correlation length of rough sea surface is presented, and the calcula- tion method is given. Using this method, the equivalent RMS height and the equivalent correlation length of PM rough sea surface with different wind speed are calculated, and the values increase with the increase of wind speed by a quadratic-function-like relationship, but will not increase unlimitedly with the wind speed increase. The sea sur- faces, which match with 10m/s and 5m/s the wind speed of 10m above the sea, are analyzed by using the equivalent RMS height and the equivalent correlation length, and the causes of the outer contour feature of the rough sea surface are analyzed.