Nonlinear Parameters for Monitoring Gear: Comparison Between Lempel-Ziv, Approximate Entropy, and Sample Entropy Complexity

Table 2

ApEn, SampEn, and LZC for different SNR of gear signals.

Cases	ApEn	LZC	SampEn
The simulated signal	0.3529	0.1294	0.2644
SNR = 80 dB	0.3547	0.1364	0.2656
SNR = 60 dB	0.3648	0.1692	0.2765
SNR = 40 dB	0.4495	0.3056	0.3500
SNR = 0 dB	1.3163	0.8909	1.2190