On the uncertainty principle in discrete signals
L.C. Calves, P. Vilbé · IEEE Transactions on Circuits and Systems II Analog and Digital Signal Processing · 1992
It has recently been shown that the uncertainty principle holds true by appropriate definitions of the durations even if discrete signals are considered. A basic inequality was derived in the particular case where the Fourier transform is real. As an extension to this work, the authors prove the uncertainty relation in the general case of a complex Fourier transform and with somewhat extended definitions of durations.>