Research Article

Machine Fault Detection Based on Filter Bank Similarity Features Using Acoustic and Vibration Analysis

Table 1

Best classification error obtained by means of each pair filter bank method, similarity measures compared with statistic features, using vibration (upper part), acoustic (middle part), and combined vibroacoustic (lower part) signals with  dB from bearing fault test rig experiment.

Similarity measureEMDWPTFFB

Correlation
Cross-entropy
CSDI
Statistics

Correlation
Cross-entropy
CSDI
Statistics

Correlation
Cross-entropy
CSDI
Statistics