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  • Time-delay estimation of acoustic emission signals using ICA
    Kosel, Tadej ; Grabec, Igor ; Kosel, Franc
    Acoustic emission (AE) analysis is used for characterization and location of developing defects in materials. AE sources often generate a mixture of various statistically independent signals. One ... difficult problem of AE analysis is the separation and characterization of signal components when the signals from various sources and the way in which the signals were mixed are unknown. Recently, blind source separation by independent component analysis (ICA) has been used to solve these problems. The main purpose of this paper is to demonstrate the applicability of ICA to time-delay (T-D) estimation of two independent continuous AE sources on an aluminum beam. It is shown that it is possible to estimate T-Ds by ICA, and thus to locate two independent simultaneously emitted sources.
    Vir: Ultrasonics. - ISSN 0041-624X (Vol. 40, no. 1/8, 2002, str. 303-306)
    Vrsta gradiva - članek, sestavni del
    Leto - 2002
    Jezik - angleški
    COBISS.SI-ID - 5253915

    Povezava(-e):

    http://www.elsevier.com/gej-ng/10/42/18/71/27/80/abstract.html

    PII: S0041-624X(02)00111-7

    Dostop do polnega teksta samo za člane



vir: Ultrasonics. - ISSN 0041-624X (Vol. 40, no. 1/8, 2002, str. 303-306)
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