Figure 6
Analysis of the periodic signal with removed sections of random length:a) the primary multi-periodic signal generated as a sum of five harmonic signals, b) its frequency spectrum, c) seq-spectrogram of this signal d) nonstationary signal obtained as result of the removal of sections of random length from primary multi-periodic signal, e) the frequency spectrum of this nonstationary signal, f) seq-spectrogram of this nonstationary signal.