SuperGraph: Spatial-Temporal Graph-Based Feature Extraction for Rotating Machinery Diagnosis
IEEE Transactions on Industrial Electronics(2022)
摘要
Vibration signals always contain noise and irregularities, which makes spectrum analysis difficult to extract high-level features. Recently, graph theory has been applied to spectrum analysis to improve the performance of feature extraction. By converting the raw data into graphs, hidden structural and topological information can be obtained. In this article, a spatial-temporal graph-based feature...
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关键词
Feature extraction,Laplace equations,Fault diagnosis,Spectral analysis,Machinery,Matrix decomposition,Graph theory
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