Table 1.

Features of the simulated signal.

Shaft Speed/Feature	GIC	ApEn	SampEn	FuzEn
1500 r/min	0.046	1.485	2.288	0.782
1530 r/min	0.046	1.496	2.313	0.780
1560 r/min	0.046	1.485	2.272	0.776
1590 r/min	0.047	1.496	2.319	0.795
1620 r/min	0.046	1.478	2.268	0.783
1650 r/min	0.047	1.478	2.252	0.786
1680 r/min	0.045	1.472	2.240	0.774
1710 r/min	0.047	1.469	2.209	0.773
1740 r/min	0.047	1.476	2.243	0.786
1770 r/min	0.046	1.458	2.197	0.782
1800 r/min	0.046	1.460	2.184	0.762
Std of features	0.0005	0.0126	0.0444	0.0085