Intelligent Turning Tool Monitoring with Neural Network Adaptive Learning

Table 4

Frequency bands of 4 levels of wavelet packet decompositions for the vibration signal.

Sequence No.	A1	A2	A3	A4	A5	A6	A7	A8
Frequency band (KHz)	0-0.8	0.8-1.6	1.6-2.4	2.4-3.2	3.2-4	4-4.8	4.8-5.6	5.6-6.4
Sequence No.	A9	A10	A11	A12	A13	A14	A15	A16
Frequency band (KHz)	6.4-7.2	7.2-8	8-8.8	8.8-9.6	9.6-10.4	10.4-11	11.2-12	12-12.8