收稿日期: 2010-08-09
修回日期: 2010-12-01
网络出版日期: 2011-03-01
基金资助
广东省科技攻关项目(2007B010400049);粤港关键领域重点突破项目(20090101—1)
A Denoising Method of Monitoring Information Under Strong Noise
Received date: 2010-08-09
Revised date: 2010-12-01
Online published: 2011-03-01
Supported by
广东省科技攻关项目(2007B010400049);粤港关键领域重点突破项目(20090101—1)
蒋贤海 谢存禧 邹焱飚 . 一种强噪声下的监护信息降噪方法[J]. 华南理工大学学报(自然科学版), 2011 , 39(4) : 66 -69 . DOI: 10.3969/j.issn.1000-565X.2011.04.012
In order to improve the accuracy of information prediction for monitoring systems,a denoising method of monitoring information under strong noise is proposed.In this method,the characteristics of wavelet coefficients of both the monitoring information and the noise are analyzed based on the wavelet transform,and the Hampel filtering is adopted to process the wavelet transform coefficients.Then,an inverse wavelet transform is performed to denoise the processed signals.An experiment is finally carried out on PhysioNet database,which verifies the effectiveness of the proposed denoising method.
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