power-cepstrum 功率倒谱
Spectrum zoom technique and power cepstrum are two important aided methods in vibration signal analysis.
频谱细化技术和功率倒频谱是振动信号分析的两种重要辅助方法。
To use power cepstrum, the transfer function is smoothed. Effect of identifying of cylinder pressure is increased.
结合功率倒谱技术，平滑了传递函数，提高了气缸压力的识别效果。
Sample the radial and axial vibration of the blade, and carry on power cepstrum, frome a new ID saw blade slicing till to its invalidation;
采集从新锯片开始锯切到失效整个过程中，锯片径向和轴向振动信号。
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