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Перегляд Кафедра фізики за автором "Chernogor, L. F."
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Публікація Choi-Williams Analysis of the Non-linear Ultrawideband Signals(2008) Chernogor, L. F.; Lazorenko, O. V.; Vishnivetskiy, O. V.Choi-Williams analysis application for the non-linear ultrawideband signal describing was proposed. The advantages and the peculiarities of Choi-Wiliiams transform were discussed. The non-linear ultrawideband signal models in time domain were given. The Choi-Williams analysis for the analysis of the non-linear ultrawideband signals was performed.Публікація Digital analysis of the non-linear ultrawideband processes(2007) Chernogor, L. F.; Lazorenko, O. V.; Lazorenko, S. V.; Vishnivetsky, O. V.The continuous wavelet transform, the analytical wavelet transform, the digital wavelet transform and the Wigner transform are proposed to apply for the digital analysis of the non-linear ultrawideband processes. The advantages and the disadvantages of each transform being significant during that application are discussed. As the convincing example, the results of the analysis of the Earth’s magnetic field disturbances caused by the rocket “Proton” launch taken place 12 February 2000 at cosmodrome Baikonur (Kazakhstan) are considered.Публікація Fractal analysis of The fractal ultra-wideband signals(2015) Chernogor, L. F.; Lazorenko, O. V.; Onishchenko, A. A.; Karazin, V. N.The results of fractal analysis of the fractal ultra-wideband (FUWB) signals were proposed. With usage of the continuous wavelet transform the time-frequency structure of that signals was investigated. Calculating the box and the regularization dimensions for each model signal with various its parameters values, three different estimators were applied. The optimal estimations of the fractal dimension value for each FUWB signal model were defined.Публікація System spectral analysis of The fractal ultra-wideband signals(2015) Chernogor, L. F.; Kravchenko, S. G.; Lazorenko, O. V.; Karazin, V. N.The theoretical basis and practical peculiarities of the system spectral analysis are briefly considered. The necessity and the expediency of simultaneously application of different linear and non-linear integral transforms during the system spectral analysis performance are explained. The system spectral analysis usage for investigations of the time-frequency structure of the fractal ultra-wideband signals is shown to be effective and useful.Публікація System Spectral Analysis of the Signals(2007) Chernogor, L. F.; Lazorenko, O. V.The new complex signal analysis method called as system spectral analysis and based on the simultaneous application of the set of linear and non-linear integral transforms is proposed. The abilities of the system spectral analysis at the sample of investigation of the unique natural phenomenon well known as the rogue wave are shown.Публікація System Spectral Analysis of the Ultrawideband Signals(2008) Chernogor, L. F.; Lazorenko, O. V.The new integrated signal analysis method called as system spectral analysis and based on the simultaneous application of the set of linear and non-linear integral transforms is proposed and realized. The abilities of the system spectral analysis at the sample of investigation of the terahertz electromagnetic pulse considered as ultrawideband (UWB) signal are shown.Публікація Wavelet Analysis of the Ultrawideband Signals(2008) Chernogor, L. F.; Lazorenko, O. V.; Lazorenko, S. V.The results of the wavelet analysis application to the ultrawideband (UWB) signal investigation are introduced. The continuous wavelet transform, the analytic wavelet transform, the discrete wavelet transform, the wavelet packets, the stationary wavelet transform and the Kravchenko-Rvachev analytic wavelets based on the atomic functions have been used to the analysis of the UWB signals and processes.