Evaluation of Signal Integrity using Wavelet Scalogram
D. González, Jan T. Białasiewicz, Josep Balcells, Javier Gago · 2006
In this paper, we introduce a new approach to evaluation of signal integrity that is based on signal energy density as a function of time and frequency. We show that this energy density can be represented by the wavelet scalogram of a signal. We also introduce some wavelet theory background paying attention to scale-frequency relationship that is important to this research. Finally, we define the Signal Integrity Ratio as a measure of its integrity and, using simulated data for an audio amplifier, we demonstrate its usefulness.