echo signal feature extraction 回声信号特征提取
Audio Signal Feature Extraction 说明音频信号特征提取实验与编程指导
feature signal extraction 特征信号提取
Due to high temporal and frequency resolution and high energy focus, the accuracy of fault signal feature extraction is greatly improved by WVD.
WVD很高的能量聚集性和很好的时频分辨率，极大地提高了故障信号特征提取的准确度。
This paper goes on the rolling bearing as the research object, researching the new theories and methods of bearing fault signal feature extraction.
本文以滚动轴承为研究对象，应用新理论，提出轴承故障信号特征提取的新方法。
This paper verified the effectiveness of the fault diagnosis method based on 2d-hmm for centrifugal pump, by applying several signal feature extraction methods combining 2d-hmm model.
在应用本文所采用的几种信号特征提取方法的基础上，结合2d - HMM模型，验证了基于2d - H MM的离心泵故障诊断方法的有效性。
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