Spectral analysis of digital quasiperiodic signals
DOI:
https://doi.org/10.3103/S0735272705080030Abstract
The spectrum calculation results are used for its estimation in a band of frequencies and for determining the parameters of individual frequency components. It is shown that the discrete Fourier transformation and the parametric method should be employed only for rough estimation of the spectrum. In spectral analysis of digital quasiperiodic signals, it is expedient to apply methods based on approximation of a sequence of data samples by the first-order trigonometric polynomial with variable frequency of its harmonic functions.References
MARPLE, S.L. Digital Spectral Analysis and Its Applications [Russian translation]. Moscow: Mir, 1990.
ANISHCHENKO, V.S. Complex Oscillations in Simple Systems [in Russian]. Moscow: Nauka, 1990.
DVINSKIKH, V.A. Radiotekhnika i Elektronika, v.37, n.6, p.1129-1133, 1992.
SKLYAROV, Y.A.; DVINSKIKH, V.A.; BRICHKOV, Y.A.; ET AL. Letters to the Astronomic Journal, v.23, n.10, p.771-775, 1997.
OSTANIN, A.N. (ed.). Application of Mathematical Methods and Computers. Planning and Processing of Experimental Results [in Russian]. Minsk: Vysheisha Shkola, 1986.
RABINER, L.; GOLD, B. Theory and Application of Digital Signal Processing [Russian translation]. Moscow: Mir, 1978.
DVINSKIKH, V.A. Izmeritel’naya Tekhnika, n.2, p.10-12, 1999.
DVINSKIKH, V.A. Pis’ma v ZhTF, v.25, n.5, p.21-24, 1999.
