Spectrum skeletonization : a new method for acoustic signal extraction

Dobján, Tibor and Németh, Gábor: Spectrum skeletonization : a new method for acoustic signal extraction. In: Acta cybernetica, (21) 1. pp. 89-103. (2013)

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Vibration Analysis Tests (VAT) and Acoustic Emission tests (AE) are used in several industrial applications. Many of them perform analysis in the frequency domain. Peaks in the power density spectrum hold relevant information about acoustic events. In this paper we propose a novel method for feature extraction of vibration samples by analyzing the shape of their auto power spectrum density function. The approach uses skeletonization techniques in order to find the hierarchical structure of the spectral peaks. The proposed method can be applied as a preprocessing step for spectrum analysis of vibration signals.

Item Type: Article
Journal or Publication Title: Acta cybernetica
Date: 2013
Volume: 21
Number: 1
ISSN: 0324-721X
Page Range: pp. 89-103
Language: angol
DOI: https://doi.org/10.14232/actacyb.21.1.2013.7
Uncontrolled Keywords: Természettudomány, Informatika, Fizika
Additional Information: Bibliogr.: p. 100-103.; Abstract
Date Deposited: 2016. Oct. 17. 10:38
Last Modified: 2018. Jun. 05. 15:02
URI: http://acta.bibl.u-szeged.hu/id/eprint/30851

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