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。
This paper presents calculation of frequency and phase difference of flow signals with spectrum analysis on basics of Fourier transform (DFT).
这会引起一定的输入频谱失真，对计算得到的频响产生影响。
This can cause some input frequency spectrum distortion which will have an effect on the computed FRF.
仿真结果表明该算法使频谱泄漏大大小于未同步化方法，具有良好性能、计算量小、适合于实时测量应用的特点。
By the computer simulation and the synchronization algorithm calculation, the result of DFT analysis show that the new algorithm is capable for reducing the leakage.
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