Enhanced Orthogonal Matching Pursuit Algorithm and Its Application in Mechanical Equipment Fault Diagnosis

Figure 4

Simulated signal analysis results from the proposed method: (a) waveform of the optimum reconstructed signal under the noise amplitude of 0.3, (b) waveform of the optimum reconstructed signal under the noise amplitude of 0.5, (c) waveform of the optimum reconstructed signal under the noise amplitude of 0.7, (d) waveform of the optimum reconstructed signal under the noise amplitude of 0.9, (e) is changed with the iterations, and (f) is changed with the iterations.

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