...异值熵；故障特征提取 [gap=1070]Key words：EMMD；auto-regressive model；singular value entropy；fault feature extraction ...
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... 人脸特征提取 Facial Feature Extraction 故障特征提取 fault feature 直线特征提取 linear feature extraction ...
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故障机理及其特征提取 Faults and Feature Extraction
针对无人机故障诊断前故障特征提取的问题进行了分析。
In this article, the issue of extraction of fault features in UAV is analyzed.
利用倒谱包络方法解决液压泵轴承故障特征提取和故障诊断的问题。
The cepstrum envelope analysis is applied to solve the problem of the diagnosis of bearing failure to hydraulic pump.
研究了基于高阶谱（主要是三阶谱）和主元分析的故障特征提取方法。
The extracting fault features approach based on high-order spectral for pump valves of reciprocating pump was investigated, especially third order spectral analysis.
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