Applying period frequency spectrum method to analysis of digital seismic recording is discussed in this parer.
论述了周期-频度谱方法在分析数字化地震记录中的应用。
Digital filter is the basic arithmetic of language, picture processing, model recognition and spectrum analysis.
数字滤波器是语言、图象处理、模式识别以及谱分析中的基本运算的处理运算。
The standard method for spectrum analysis in digital signal processing is the discrete Fourier transform(DFT), typically implemented using a fast Fourier transform(FFT) algorithm.
数字信号处理中标准的频谱分析方法是离散傅立叶变换（DFT），典型的实现方法是快速傅立叶变换（FFT）。
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