Bearing fault diagnosis based on sparse representations using an improved OMP with adaptive Gabor sub-dictionaries.
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DOI: 10.1016/j.isatra.2020.07.004
Abstract: To accurately extract fault signatures from noisy signals, an improved orthogonal matching pursuit (OMP) with adaptive Gabor sub-dictionaries is proposed in this paper. Firstly, based on the optimal time-frequency characteristics of Gabor atom, the Gabor… read more here.
Keywords: sparse representations; gabor sub; fault; sub dictionaries ... See more keywords