Wavelet analysis in problems of the near-to-earth space
|1Lazorenko, OV, 2Lazorenko, SV, 3Chernogor, LF |
1Kharkiv National University of Radio Electronics of the Ministry of Education and Science of Ukraine, Kharkiv, Ukraine
2International Slavic University, Kharkiv, Ukraine
3V.N. Karazin National University of Kharkiv, Kharkiv, Ukraine
|Kosm. nauka tehnol. 2005, 11 ;(5-6):022-029|
|Publication Language: Russian|
Both wavelet analysis and Fourier analysis were applied to solve some problems of the near-to-Earth space physics. As an example an investigation of some properties of the solar activity time variations described by sunspot numbers was carried out with the use of these analyses. Similar investigations were performed for the time variations of the Dst-index from 1957 to 2001 and for the time variations of the Karazin Kharkiv National University magnetometer-fluxmeter signals from 1999 to 2003. The wavelet analysis is represented by the continuous wavelet transform and the traditional Fourier analysis is denoted by the dynamic spectra. The parameters of the disturbances appearing in the near-to-Earth space were estimated. High efficiency of the wavelet analysis was pointed out. The methods of the wavelet analysis and Fourier analysis were shown to be mutually complement.
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