Instantaneous impedance spectra of a non-stationary model electrical system
By Darowicki, K; Orlikowski, J & Lentka, G
Published in Journal of Electroanalytical Chemistry
2000
Abstract
Results of impedance measurements of a non-stationary model electric system are presented. Impedance measurements were realised by the pseudo-white noise technique. Simultaneous time–frequency analysis of the response signal was performed using the short-time Fourier transformation method. It is shown that the measurement method correctly reflects changes of the system investigated in the time and frequency domains.