NOISE-ASSISTED EMD METHODS IN ACTION
NOISE-ASSISTED EMD METHODS IN ACTION
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DOI：
10.1142/s1793536912500252
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发表时间：
2012-10-01
影响因子：
0.6
通讯作者：
Flandrin, Patrick
中科院分区：
文献类型：
--
作者：
Colominas, Marcelo A.;Schlotthauer, Gaston;Flandrin, Patrick
在这项工作中，我们探索了两种噪声辅助 EMD 方法的功能：集成 EMD (EEMD) 和最近提出的具有自适应噪声的完整集成 EMD (CEEMDAN)，以恢复嵌入不同类型噪声（静态和非静态）中的纯音。进行实验以评估其在添加噪声水平和用于平均的实现数量方面的性能。获得的结果部分支持文献中报告的实证建议，同时证明了新的显着特征。虽然 EEMD 在不同情况下表现出截然不同的行为，但 CEEMDAN 证明了一定的鲁棒性，并且在研究案例中性能几乎不受影响。
In this work we explore the capabilities of two noise-assisted EMD methods: Ensemble EMD (EEMD) and the recently proposed Complete Ensemble EMD with Adaptive Noise (CEEMDAN), to recover a pure tone embedded in different kinds of noise, both stationary and nonstationary. Experiments are carried out for assessing their performances with respect to the level of the added noise and the number of realizations used for averaging. The obtained results partly support empirical recommendations reported in the literature while evidencing new distinctive features. While EEMD presents quite different behaviors for different situations, CEEMDAN evidences some robustness with an almost unaffected performance for the studied cases.