Wavelet-Based Feature Extraction in Fault Diagnosis for Biquad High-Pass Filter Circuit

Table 2

Diagnosis rate of fault feature constructed by 5 mother wavelets.

Fault classes	Haar	Sys4	Morlet	Mexh	Meyer
Norm	5%	15%	40%	45%	25%
1↑	65%	65%	70%	85%	65%
1↓	70%	65%	15%	10%	20%
4↑	15%	0%	25%	15%	15%
4↓	35%	20%	40%	45%	60%
2↑	5%	20%	70%	20%	15%
2↓	35%	35%	40%	60%	25%
3↑	95%	95%	65%	45%	30%
3↓	100%	100%	70%	65%	25%
2↑	95%	95%	85%	75%	60%
2↓	100%	100%	90%	65%	70%
1↑	70%	70%	95%	60%	65%
1↓	10%	5%	25%	30%	10%
Average	53.85%	52.69%	56.2%	47.69%	37.31%