...设计论文网 关键字：功率谱估计；周期图；BT法；AR模型法。 [gap=1380]Keywords: Power Spectrum Estimation；The Periodogram；the BT methods；AR model.
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the Lomb periodogram Lomb周期图
The power spectral density of gearbox vibration signals is estimated by the periodogram from which original feature sets are derived.
为解决该问题，提出了利用频域特征和遗传编程对齿轮箱盖多类状态振动信号进行特征提取的方法。
The major periods in first four principal components series are also revealed by using the periodogram and the maximum entropy method.
在这四个主成分序列中的决定性周期用周期图和最大熵方法加以揭露。
A simple algorithm for frequency offset estimation is proposed, which estimates the frequency offset with the periodogram and the correlation function of the observation samples.
提出了一种频差估计的新算法，该算法结合观测序列的周期图和自相关函数进行频率估值。
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