Journal of Electrical and Computer Engineering / 2018 / Article / Tab 6

Research Article

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

Table 6

Comparison of program computation time of the envelope method and the direct method.

WaveletDirect method/sEnvelope method /sReduction of computation time/%

db20.174130.1380320.734
Sym20.166270.1466211.817
Coif10.174420.1525212.558
bior2.20.187280.1498319.993