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Vibration Signal Denoising using Neighbourhood and Parent-Child Relationship of Wavelet Transform Coefficients
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 130 - Number 4 |
| Year of Publication: 2015 |
| Authors: Pooja Yadav, Preety D. Swami |
10.5120/ijca2015906874
|
Pooja Yadav, Preety D. Swami . Vibration Signal Denoising using Neighbourhood and Parent-Child Relationship of Wavelet Transform Coefficients. International Journal of Computer Applications. 130, 4 ( November 2015), 37-42. DOI=10.5120/ijca2015906874
Abstract
A method based on intra-scale and inter-scale dependency of coefficient of stationary wavelet transform has been developed for vibration signal denoising. In this paper, features of Stationary Wavelet Transform are revised by comparing it to Discrete Wavelet Transform. Proposed denoising method is simulated for different noise values and results are compared to other denoising methods. Proposed method is used for treatment of practical signals to confirm that the proposed method is suitable and efficient in improving the SNR of the vibration signal and in processing the original information by retaining its shape.
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