[1] HUANG N ESHEN ZLONG S Ret al.The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis［J］.Proceedings of the Royal Society of London.Series A:MathematicalPhysical and Engineering Sciences1998454(1971): 903-995.

[3] HUANG G BZHU Q YSIEW C K.Extreme learning machine:theory and applications［J］.Neurocomputing 200670(1-3):489-501.

[4] MIRJALILI SMIRJALILI S MLEWIS A.Grey wolf optimizer［J］.Advances in Engineering Software201469(3):46-61.

[8] BANDT CPOMPE B.Permutation entropy:a natural complexity measure for time series［J］.Physical Review Letters200288(17):174102.

[9] HYVRINEN AOJA E.A fast fixed-point algorithm for independent component analysis［J］.Neural Computation 19979(7):1483-1492.

[10] OMITAOMU O APROTOPOPESCU V AGANGULY A R.Empirical mode decomposition technique with conditional mutual information for denoising operational sensor data［J］.IEEE Sensors Journal201111(10):2565-2575.