Rolling Bearing Fault Diagnosis Based on MFDFA-SPS and ELM

Table 1

The six characteristic parameters extracted by MFDFA and SPS.

MFDFA		The abscissa of the multifractal spectrum vertices
		The width of the multifractal spectrum
		The value of the hurst exponent when
		The value of the hurst exponent when
		The value of the hurst exponent when
SPS		Summation of the singularity power spectrum