Tighter uncertainty principles for periodic signals in terms of frequency
Pei Dang · Mathematical Methods in the Applied Sciences · 2014
Abstract In this study, we propose some new uncertainty principles for periodic signals with sharper lower bounds than those in the existing ones. The improved lower bounds, in particular, are related to the frequency of the signal. Three examples are employed to demonstrate sharpness of the new uncertainty principles. Copyright © 2014 John Wiley & Sons, Ltd.