2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/21354The problem of the intrinsic origin of 1/f noise is considered. Currents and signals consisting of a sequence of pulses are analysed. It is shown that intrinsic origin of 1/f noise is a random walk of the average time between subsequent pulses of the pulse sequence, or interevent time. This results in the long-memory process for the pulse occurrence time and in 1/f type power spectrum of the signal.8 pages, no figuresStatistical MechanicsSpectral TheoryChaotic Dynamicstext