Application of EMD to signal trend extraction

Jun Chen, You Lin Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

31 Citations (Scopus)

Abstract

This paper investigates the application of empirical mode decomposition (EMD) to signal trend extraction. EMD can decompose any signal into sum of intrinsic mode functions (IMF) plus a residual. Thus, the signal trend is defined as the residual or sum of several IMF components whose frequency content is lower than a given value. Both simulated and field measured signal are employed in this study to demonstrate the feasibility of the approach. The results show that the trend can be extracted directly from the measured signal using the EMD approach without any presumptions of the trend type. It is concluded that the EMD approach is a promising tool for signal trend extraction.
Original languageChinese (Simplified)
Pages (from-to)101-104
Number of pages4
JournalZhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis
Volume25
Issue number2
Publication statusPublished - 1 Jun 2005

Keywords

  • Empirical mode decomposition
  • Intermittency check
  • Trend
  • Vibration signal

ASJC Scopus subject areas

  • Instrumentation
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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