Paper Title:
Acoustic Signals Analysis Based on Empirical Mode Decomposition and Spectrum Analysis Technique
  Abstract

A method to analyze the acoustic signals collected in fully-mechanized caving face is presented in this paper. Through analyzing the marginal spectrum and frequency spectrum of intrinsic mode functions obtained by empirical mode decomposition, acoustic signals’ frequency and amplitude characteristics are gotten, that is, high frequency signals about 1000Hz ~2800Hz are produced when the top coal is combined with gangue. Furthermore, the acoustic signals’ instantaneous energy spectrums in the frequency range of 1000Hz ~2800Hz can be used to identify the coal-rock interface.

  Info
Periodical
Edited by
Zhu Zhilin & Patrick Wang
Pages
91-95
DOI
10.4028/www.scientific.net/AMM.40-41.91
Citation
Y. L. Zhang, "Acoustic Signals Analysis Based on Empirical Mode Decomposition and Spectrum Analysis Technique", Applied Mechanics and Materials, Vols. 40-41, pp. 91-95, 2011
Online since
November 2010
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