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本文从理论上介绍海浪谱分析的两种方法:相关函数法和快速傅利叶分析法(即FFT)。利用所介绍的分析方法,对我们研制的重力测波仪所记录的海浪样本曲线进行实际的分析和计算。作为一个例子,文末给出一个实际计算结果的相关函数曲线和波谱曲线。
In this paper, two methods of wave spectrum analysis are introduced theoretically: correlation function method and fast Fourier analysis (FFT). Using the analysis method introduced, the wave sample curve recorded by the gravity wavemeter we developed was analyzed and calculated. As an example, the paper gives a correlation function curve and spectral curve of the actual calculation results.