177 / 1971-01-01 00:00:00

Denoising Of Vibration Signal Based On Vs-lms-eemd

Variable Step Least Mean Square (VS-LMS) adaptive algorithm,Ensemble Empirical mode Decomposition (EEMD),correlation coefficient, head endpoint

This article in view of the denoise of vibration signal in the low Signal-to-Noise Ratio (SNR) noise circumstance. Using Variable Step Least Mean Square (VS-LMS) adaptive algorithm of the advantage of quick convergence speed and step factor is adjustable, for amplitude modulation frequency modulation signal can be effective noise reduction in the low SNR situation. And using the Ensemble Empirical Mode Decomposition (EEMD) the advantages of resistance to modal mixing can correct decomposition out white noise. Aim at the advantages and disadvantages of the above tow methods, I designed the VS-LMS-EEMD adaptive filter. Thus in the situation of low SNR to achieve better noise reduction effect.