Table 6 Anti-aliasing evaluation index η of EWT, EMD and EEFO-VMD.

From: A parameter adaptive EEFO VMD method to mitigate noise and trend interference of blast vibration signals

Method

N0

N1

N2

η

EWT

2

3

3

0.44

EMD

10

9

3

0.27

EEFO-VMD

3

4

3

0.75

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