Fast Spectral Correlation Based on Sparse Representation Self-Learning Dictionary and Its Application in Fault Diagnosis of Rotating Machinery

<div>Outer race fault simulation signal of rolling element bearing: (a) simulation signal without noise; (b) simulation signal with strong background noise; (c) EDS of the signal as shown in Figure <a href="../fig1/#b">1(b)</a>.</div>

Complexity

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Figure 1: Fast Spectral Correlation Based on Sparse Representation Self-Learning Dictionary and Its Application in Fault Diagnosis of Rotating Machinery 

Figure 1 | Fast Spectral Correlation Based on Sparse Representation Self-Learning Dictionary and Its Application in Fault Diagnosis of Rotating Machinery 