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

<div>Modulation characteristics of vibration signal of compound fault. (a) Fault shock. (b) Fault shock response. (c) Envelope signal. (d) Envelope spectrum.</div>

Shock and Vibration

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Figure 2

Figure 2: Sparsity-Oriented Nonconvex Nonseparable Regularization for Rolling Bearing Compound Fault under Noisy Environment 