Threshold Noise Reduction Research of Improved EEMD Method

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In order to extract effectively detection signals in the noise background for non-stationary signal.On the basis of EEMD, improved EEMD is put forward, the improve EEMD threshold noise reduction is researched in this paper.The simulation signal compared the noise reduction effect of the wavelet,EMD,EEMD,and the improved EEMD. The improved EEMD threshold noise reduction have the best noise reduction result , the highest signal-to-noise ratio, the smallest standard deviation error.After the improved EEMD threshold noise reduction , the measurement signal time domain waveform smooth. More high frequency noise was obviously reduced in Hilbert time- frequency spectrum. Signal-to-noise ratio significantly improve, and signal characteristics are very clear.

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Periodical:

Edited by:

Chunliang Zhang and Paul P. Lin

Pages:

237-240

Citation:

M. J. Zhang et al., "Threshold Noise Reduction Research of Improved EEMD Method", Applied Mechanics and Materials, Vols. 226-228, pp. 237-240, 2012

Online since:

November 2012

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$38.00

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