海洋时间序列的谱分析方法

Spectral Analysis Method of Time Series in the Ocean

本文简要阐述了海洋时间序列中两类（标量与矢量）随机过程各种谱的定义、概念、性质等，并对国内目前应用尚不广泛的旋转谐与二阶谱作了较详细的叙述，且重点介绍用FFT进行各种谱估计的方法。

There are different random phenomena in the ocean , which may mostly be describedby use of random scalar or random vector processes. In this paper, the definitions and conceptsof diverse spectra for the two kinds of random processes are systematically reviewed, and themethods for estimating various spectra by FFT are espeCially discussed.