Comparison between ED and SDPS plots as the results of wavelet transform for analyzing electrochemical noise data

► Energy distribution (ED) plot is a common way to analyze electrochemical noise data. ► Standard deviation of partial signal (SDPS) plot is more versatile than ED plot. ► Both ED and SDPS plots can detect the predominant transients of each signal. ► SDPS plot unlike ED plot can distinguish several signals according to intensity. ► SDPS plot can categorize several corroding systems according to the pit density.