Bearing Diagnostics of Hydro Power Plants Using Wavelet Packet Transform and a Hidden Markov Model with Orbit Curves

Table 2

DC filtering techniques result.

Acquisition	Mean value	FIR filter	Difference
16/04/2017	1089.76 [μm]	1087.34 [μm]	0.22 [%]
02/05/2017	1023.05 [μm]	1022.54 [μm]	0.05 [%]
20/03/2017	1018.53 [μm]	1018.09 [μm]	0.04 [%]
23/05/2017	1035.73 [μm]	1036.67 [μm]	0.09 [%]
09/09/2016	1063.90 [μm]	1063.50 [μm]	0.04 [%]
17/04/2017	1064.40 [μm]	1063.52 [μm]	0.08 [%]