ON SIGNAL DENOISING BY EMD IN THE FREQUENCY DOMAIN

被引：0

作者：

Ahmed, Hadj Ahmed Bay ^{[1
]}

Komaty, Ali ^{[1
]}

Dare, Delphine ^{[1
]}

Boudraa, Abdel ^{[1
]}

机构：

[1] BCRM Brest, Ecole Navale, IRENav, EA 3634, CC 600, F-29240 Brest 9, France

来源：

2015 23RD EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO) | 2015年

关键词：

Empirical Mode Decomposition; Intrinsic Mode Function; Denoising;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work a new denoising scheme based on the empirical mode decomposition associated with a frequency analysis is introduced. Compared to classical approaches where the extracted modes are thresholded in time domain, in the proposed strategy the threshol ding is done in the frequency domain. Each mode is divided into blocks of equal length where the frequency content of each one is analyzed. Relevant triodes are identified using an energy and a frequency thresholds obtained by training. The denoised signal is obtained by the superposition of the thresholded modes. The effectiveness of the proposed scheme is illustrated on synthetic and real signals and the results compared to those of methods reported recently.

引用

页码：2656 / 2660

页数：5