As one of the best tools to analyze the non-stationary signals, it shows a good picture in the joint time-frequency domain and makes us know about the change of frequency along with the time clearly.

这种分析方法提供了时间域与频率域的联合分布信息，清楚地为我们描述了信号频率随时间变化的关系。

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As one of the best tools to analyze the non-stationary signals, it shows a good picture in the joint time-frequency domain and makes us know about the change of frequency along with the time clearly.

这种分析方法提供了时间域与频率域的联合分布信息，清楚地为我们描述了信号频率随时间变化的关系。

youdao