谱分析是气象上常用的资料处理方法.目前较多使用的是将资料的自相关函数的富氏变换乘以窗函数从而得到功率谱估计.这虽然常常可以获得谱的相容性估计,但它是一种非参数化的估计方法,不便于用来作分析和推导;对隐含在随机序列中的谐波分量 Spectral analysis is a common meteorological data processing method.At present, more commonly used is to multiply the Fourier transform of the autocorrelation function of the data by the window function to get the power spectrum estimation.Although it is often possible to obtain the spectral compatibility estimation, However, it is a non-parametric estimation method, which is inconvenient to be used for analysis and derivation. For the harmonic components implicit in the random sequence