Spectrum analyzers for nonlinear phenomena investigations

• Autorzy: Tkachenko V. , Frish A. , Goryacheva H. , Karplyuk I.
• Konferencja: Proceedings of the 2 nd EAA International Symposium on Hydroacoustics 24-27 May 1999, Gdańsk-Jurata POLAND
• Języki publikacji: EN

Abstrakty

EN

The subject of the paper is the application of digital signal processing (DSP) to nonlinear hydroacoustic, acoustic and mechanic phenomena investigations. To provide such investigations a spectrum analyzer with additional functions of polyspectra and virtual input channel is proposed. The mathematics, equipment and programming of the analyzer are discussed. It is shown how the analyzer enables to detect and to explore the random impulse sequences combined with one another and with Gaussian noise, to separate the oscillations having close unstable frequencies, to observe the nonlinear interaction between oscillation modes, to detect the noise emission accompanying the oscillation mode energy dissipation.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 1999
• Tom: Vol. 2
• Strony: 267--272
• Opis fizyczny: Bibliogr. 4 poz.

Twórcy

autor

Tkachenko V.

• Lviv Polytechnic State University (Scientific and research institute NOKI ELVIT). 290005, 5 Prince Roman str. Lviv, Ukraine

autor

Frish A.

• Lviv Polytechnic State University (Scientific and research institute NOKI ELVIT). 290005, 5 Prince Roman str. Lviv, Ukraine

autor

Goryacheva H.

• Lviv Polytechnic State University (Scientific and research institute NOKI ELVIT). 290005, 5 Prince Roman str. Lviv, Ukraine

autor

Karplyuk I.

• Lviv Polytechnic State University (Scientific and research institute NOKI ELVIT). 290005, 5 Prince Roman str. Lviv, Ukraine

Bibliografia

• 1. D. Brillinger, An introduction to polyspectra, Annals of Math. Statistics, 36, pp.1351-1374, (1965).
• 2. D. Brillinger. and M. Rosenblatt. Asymptotic theory of estimates of k-th order spectra, in Spectral Analysis of Time Series, New York: B.Harris, Ed., 1967. Wiley, pp. 153-188. .
• 3. D. Brillinger and M. Rosenblatt Computation and interpretation of k-th order spectra, in Spectral Analysis of Time Series, New York: B.Harris, Ed., 1967. Wiley, pp. 189-232.
• 4. V. Kravtzov et al. Spectrum Analyser for the Investigation of Nonlinear Phenomena. Structure and Applications, Measurement, Journal 12 of the International Measurement Confederation IMECO, Amsterdam, pp. 317-322. (1994).