... phase frequency spectrum 相位频谱 Phase difference spectrum 相位差谱 phase sound spectrum 声相位谱 ...
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The auto power spectrum of phase function commonly has two extreme frequencies, and the corresponding frequency components decide the peak characteristics of phase function.
相函数的自功率谱一般具有两个峰值频率，其相应的频率分量决定相函数的波峰特征。
Using frequency spectrum analysis of phase function to calculate its auto power spectrum can reflect its frequency structure.
利用相函数的频谱分析求其自功率谱，可以反映它的频率结构。
This paper presents calculation of frequency and phase difference of flow signals with spectrum analysis on basics of Fourier transform (DFT).
本文采用基于傅立叶变换(DFT)的频谱分析方法，计算流量信号的频率和相位差。
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