Empirical Mode Decomposition in Discrete Time Signals Denoising
Journal Title: Acta Marisiensis. Seria Technologica - Year 2019, Vol 16, Issue 1
Abstract
This study explores the data-driven properties of the empirical mode decomposition (EMD) for signal denoising. EMD is an acknowledged procedure which has been widely used for non-stationary and nonlinear signal processing. The main idea of the EMD method is to decompose the analyzed signal into components without using expansion functions. This is a signal dependent representation and provides intrinsic mode functions (IMFs) as components. These are analyzed, through their Hurst exponent and if they are found being noisy components they will be partially or integrally eliminated. This study presents an EMD decomposition-based filtering procedure applied to test signals, the results are evaluated through signal to noise ratio (SNR) and mean square error (MSE). The obtained results are compared with discrete wavelet transform based filtering results.
Authors and Affiliations
Zoltan German-Sallo
Keywords
Related Articles
- EP ID EP590849
- DOI -
- Views 101
- Downloads 0
What Does Engineering Ethics Involve?
This paper aims at elucidating and concluding information on engineering ethics, rights of engineers versus employee rights. This theoretical objective was achieved by the bibliographic study of some reference works in t...
Time Series Analysis Using Entropy Metrics
Entropy metrics are valuable tools for use in systems science and engineering. Both of domains are assumed to work with signals, to perform testing and evaluation tasks through specific signals. Entropy metrics indicate...
Smart Grids and Distributed Generation
This paper describes the main characteristics of Smart Grids and distributed generation. Smart Grids can be defined as a modernization of the power system so it monitors, protects and automatically optimizes the operatio...
An exemplified introduction of the Laplace transform
We solve a linear Cauchy problem with discontinuous perturbation two ways, by solving continuous Cauchy problems successively and by using Laplace transform. An example is given when the last one cannot be used any longe...
Geometrical Inequalities in Acute Triangles Involving the Medians IX
The purpose of this paper is to give a positive answer to a new open question that aimed to generalize previous open questions formulated by researchers in the field of geometrical inequalities. In this sense we prove th...