Sparsity-Oriented Nonconvex Nonseparable Regularization for Rolling Bearing Compound Fault under Noisy Environment

<div>Vibration acceleration signal of compound fault bearing. (a) Time-domain diagram of acceleration signal. (b) Frequency-domain diagram of acceleration signal.</div>

Shock and Vibration

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Figure 3

Figure 3: Sparsity-Oriented Nonconvex Nonseparable Regularization for Rolling Bearing Compound Fault under Noisy Environment 