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A method on noise suppression based on active control by using systems with high-frequency vibrations

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1 Author(s)
Wei Wang ; Inf. Sch., Renmin Univ. of China, Beijing, China

Usually noise is harmful to human being or industrial applications. To suppress the influence of stochastic noises has attracted many attentions. In this paper, however, based on the idea of stochastic resonance can be benefit for signal processing, we propose a method by using a feedback control system which can produce high-frequency signals for noise suppression. We design the control system which uses integral feedback with variable gain so that it can suppress noise whether the noise is a white or colored one. With little restrictions to the forms of noises and using simple system structure, we can get satisfactory suppression results even for noises which are with abrupt jump components. The theoretical analysis and simulation results are shown to indicate the effectiveness of the proposed method. We hope that the method will be useful for industrial or medical applications in the future.

Published in:

Image and Signal Processing (CISP), 2010 3rd International Congress on  (Volume:8 )

Date of Conference:

16-18 Oct. 2010