The results we obtained on normal PCG signal show that the STFT analysis with different scale basis provides a clear comprehension of the cardiac events in both time and frequency domain.

实验结果表明，不同时频尺度的STFT分析可以很好地描述正常心音信号的时域和频域特征。

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The results we obtained on normal PCG signal show that the STFT analysis with different scale basis provides a clear comprehension of the cardiac events in both time and frequency domain.

实验结果表明，不同时频尺度的STFT分析可以很好地描述正常心音信号的时域和频域特征。

youdao