10.14489/td.2016.10.pp.034-043

2016, 10 October

DOI: 10.14489/td.2016.10.pp.034-043

Osipov K. O., Zagidulin R. V., Zagidulin T. R.
WAVELET ANALYSIS OF ACOUSTIC EMISSION SIGNALS BASED ON ALGEBRAIC WAVELETS
(pp. 34-43)

Abstract. The possibility of algebraic wavelets in application to wavelet analysis of acoustic emission signals has been investigated. An optimal shape of wavelet function for acoustic emission signals analysis could be usually obtained by finite sum of algebraic functions. The technique is proposed to determine optimal values of wavelet parameters for acoustic emission signals analysis. It gives the possibility to calculate the intervals of optimal values variation of wavelets parameters. It is shown that the wavelet transform of the high-frequency components of measured acoustic emission signals causes reduction of the noise and significant increase the signal-to-noise ratio (SNR).

Keywords: acoustic signals, wavelet transform, algebraic wavelet, optimal parameters of wavelet transform, signal-to-noise ratio (SNR).

+ - About the Authors Click to collapse

K. O. Osipov (Individual Department LLC “Interunis”, Ufa, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
R. V. Zagidulin, T. R. Zagidulin (LLC “Scientific and Technical Center “Spector”, Ufa, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Astaf'eva N. M. (1996). Wavelet analysis: basic theory and several applications. Uspekhi fizicheskikh nauk, 166(11), pp. 1145-1170. [in Russian language]
2. Zagidulin R. V., Muzhitskii V. F., Shlein D. V., Zagidulin T. R. (2008). Wavelet analysis of the magnetic field defect in ferromagnetic product. Kontrol'. Diagnostika, (7), pp. 18-24. [in Russian language]
3. Konnov A. V., Kuznetsov A. M., Zagidulin T. R., Zagidulin R. V. (2013). Electromagnetic surface inspection of steel pipelines in the process of re insulation. International scientific and technical conference «The achievements of physics of nondestructive testing», Republic of Belarus, Minsk, 15 October 2013, pp. 182-189. [in Russian language]
4. Perov D. V., Rinkevich A. B. (2005). Application of the discrete wavelet transform to separate signals from noise of different spectral composition. Akusticheskii zhurnal, 51(4), pp. 520-526. [in Russian language]
5. Rinkevich A. B., Perov D. V. (2005). A wavelet analysis of acoustic fields and signals in ultrasonic nondestructive testing. Defektoskopiia, (2), pp. 43-54. [in Russian language]
6. Barat V. A., Aliakritskii A. L. (2009). Automated method of acoustic-emission testing data analysis. Kontrol'. Diagnostika, (12), pp. 12-19. [in Russian language]
7. Zagidulin R. V., Zagidulin T. R., Konnov A. V. (2014). Wavelet analysis of surface eddy current transducer signal measured on weld having a discontinuity of metal. Kontrol'. Diagnostika, (1), pp. 62-69. doi: 10.14489/td.2014.01.pp.062-069 [in Russian language]
8. Zagidulin R. V., Konnov A. V. (2013). The issues of searching a wavelet function optimal parameters values for wavelet transformation of eddy current transducer’s signal over discontinuity of steel part. Kontrol'. Diagnostika, (5), pp. 12-17. [in Russian language]
9. Lavrent'ev M. A., Shabat B. V. (1973). Methods of the theory of functions of a complex variable. Moscow: Nauka. [in Russian language]
10. Bakhvalov N. S., Zhidkov N. P., Kobel'kov G. M. (2003). Numerical methods. Moscow: Nauka. [in Russian language]
11. Zagidulin R. V., Muzhitskii V. F., Biziulev A. N. (2002). Choice of a window function in the mathematical processing of the measured magnetic field of a flaw in a ferromagnetic product. Defektoskopiia, (6), pp. 59-64. [in Russian language]
12. Bendat Dzh., Pirsol A. (1983). Application of correlation and spectral analysis. Moscow: Mir. [in Russian language]

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

DOI: 10.14489/td.2016.10.pp.034-043

Copy the article DOI and follow the link https://id-spektr.ru/product/pokupka-elektronnoy-stati-iz-zhurnala-kontrol-diagnostika

Please specify the article DOI in the order comments.