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   Articles with "empirical mode" as a keyword



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Bivariate 2D empirical mode decomposition for analyzing instantaneous turbulent velocity field in unsteady flows

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recommendations! Published in 2019 at "Experiments in Fluids"

DOI: 10.1007/s00348-019-2775-5

Abstract: We introduce and demonstrate the bivariate two-dimensional empirical mode decomposition (bivariate 2D-EMD) for the decomposition of a turbulent instantaneous velocity field to separate spatial large-scale organized motion from random turbulent fluctuations. To validate this approach,… read more here.

Keywords: velocity field; velocity; decomposition; empirical mode ... See more keywords
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Hierarchical decomposition based on a variation of empirical mode decomposition

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recommendations! Published in 2017 at "Signal, Image and Video Processing"

DOI: 10.1007/s11760-016-1024-0

Abstract: Adaptive methods of signal analysis have proved a very useful tool for analysis of non-stationary signals. This is due to the ability of these methods to adapt to the local structures of the signals being… read more here.

Keywords: mode decomposition; frequency; emd; empirical mode ... See more keywords
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Grain size characterization of aluminum based on ensemble empirical mode decomposition using a laser ultrasonic technique

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recommendations! Published in 2019 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2019.07.030

Abstract: Abstract In this study, an effective approach was presented for the decomposition and reconstitution of ultrasonic signals and the creation of a prediction model to characterize the average grain size of materials via a nondestructive… read more here.

Keywords: decomposition; grain size; empirical mode; mode decomposition ... See more keywords
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Scale dependent prediction of reference evapotranspiration based on Multi-Variate Empirical mode decomposition

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recommendations! Published in 2018 at "Ain Shams Engineering Journal"

DOI: 10.1016/j.asej.2016.10.014

Abstract: This study proposes a novel method for estimation of reference evapotranspiration (ETo) by accounting the time scale of variability using the Multivariate Empirical Mode Decomposition (MEMD). First the ETo and the four predictor variables such… read more here.

Keywords: empirical mode; reference evapotranspiration; mode; mode decomposition ... See more keywords
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Enhancement of lung sounds based on empirical mode decomposition and Fourier transform algorithm

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recommendations! Published in 2017 at "Computer methods and programs in biomedicine"

DOI: 10.1016/j.cmpb.2016.10.025

Abstract: BACKGROUND AND OBJECTIVE There is always heart sound (HS) signal interfering during the recording of lung sound (LS) signals. This obscures the features of LS signals and creates confusion on pathological states, if any, of… read more here.

Keywords: mode; algorithm; method; based empirical ... See more keywords
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Seizure detection from EEG signals using Multivariate Empirical Mode Decomposition

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recommendations! Published in 2017 at "Computers in biology and medicine"

DOI: 10.1016/j.compbiomed.2017.07.010

Abstract: We present a data driven approach to classify ictal (epileptic seizure) and non-ictal EEG signals using the multivariate empirical mode decomposition (MEMD) algorithm. MEMD is a multivariate extension of empirical mode decomposition (EMD), which is… read more here.

Keywords: eeg signals; empirical mode; decomposition; mode decomposition ... See more keywords
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Empirical mode decomposition based algorithm for islanding detection in micro-grids

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recommendations! Published in 2021 at "Electric Power Systems Research"

DOI: 10.1016/j.epsr.2021.107542

Abstract: Abstract Owning to extensively enhancement of renewable energy resources in the distribution grids, the employment of such sources is also associated with various issues such as the islanding problem. In this paper, an effective method… read more here.

Keywords: detection; islanding detection; method; micro grids ... See more keywords
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Fuzzy Empirical Mode Decomposition for Smoothing Wind Power with Battery Energy Storage System

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recommendations! Published in 2017 at "IFAC-PapersOnLine"

DOI: 10.1016/j.ifacol.2017.08.1735

Abstract: Abstract The intermittency and fluctuations of wind power cause problems in integration of wind energy systems into the grid. To smooth the fluctuations of wind power, a control scheme based on fuzzy empirical mode decomposition… read more here.

Keywords: empirical mode; energy; power; wind power ... See more keywords
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A fast and adaptive bi-dimensional empirical mode decomposition approach for filtering of workpiece surfaces using high definition metrology

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recommendations! Published in 2018 at "Journal of Manufacturing Systems"

DOI: 10.1016/j.jmsy.2018.01.005

Abstract: Abstract The surface topography of workpieces has an important influence on the final performances of the product. The digital filtering is a critical step to analyze the surface topography of workpieces. Bi-dimensional empirical mode decomposition… read more here.

Keywords: topography; surface; dimensional empirical; empirical mode ... See more keywords
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Modified complementary ensemble empirical mode decomposition and intrinsic mode functions evaluation index for high-speed train gearbox fault diagnosis

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recommendations! Published in 2018 at "Journal of Sound and Vibration"

DOI: 10.1016/j.jsv.2018.03.018

Abstract: Abstract Complementary ensemble empirical mode decomposition (CEEMD) has been developed for the mode-mixing problem in Empirical Mode Decomposition (EMD) method. Compared to the ensemble empirical mode decomposition (EEMD), the CEEMD method reduces residue noise in… read more here.

Keywords: mode; evaluation index; ensemble empirical; empirical mode ... See more keywords
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Internal leakage detection for inlet guide vane system at gas turbine compressor with ensemble empirical mode decomposition

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recommendations! Published in 2019 at "Measurement"

DOI: 10.1016/j.measurement.2018.11.026

Abstract: Abstract This paper investigates the detection of the internal leakage in the hydraulic inlet guide vane (IGV) system at the gas turbine compressor. Based on methods of ensemble empirical mode decomposition (EEMD) and Hilbert transform… read more here.

Keywords: empirical mode; internal leakage; mode decomposition; leakage ... See more keywords