Journal of Electrical and Computer Engineering / 2018 / Article / Tab 8

Research Article

Change Point Detection for Piecewise Envelope Current Signal Based on Wavelet Transform

Table 8

Comparison of envelope method with different wavelets.

WaveletMaximum modulusAverage modulusRelative error/%Average time/s

db20.63460.07328.67330.02010.2040
0.15262.08490.0439
Sym20.63460.07328.67330.02010.2160
0.15262.08490.0439
Coif10.31490.07714.08410.92650.2169
0.13251.71901.4076
bior2.20.20630.06633.10640.92650.2401
0.16592.49851.4076