Convolutional sparse coding with periodic overlapped group sparsity for rolling element bearing fault diagnosis

• Published in: Measurement science & technology Vol. 29; no. 11; pp. 115103 - 115118
• Main Authors: Xia, Yi, Lu, Siliang
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.11.2018
• Subjects: convolutional sparse coding; dictionary learning; fault diagnosis; group sparsity

To cope with the problem of detecting periodic impulses in rotating machines with certain bearing faults, this paper proposes a novel data-driven dictionary learning and sparse coding algorithm. In our approach, the signal is decomposed into one or several components with each one as a convolution o...