A NOVEL-APPROACH TO THE OPTIMAL BIORTHOGONAL ANALYSIS WINDOW SEQUENCEOF THE DISCRETE GABOR EXPANSION

This paper deals with the determination of the optimal biorthogonal an alysis window sequence of the discrete Gabor expansion. We first deriv e the relationships between the continuous and discrete Gabor expansio ns. On the basis of the relationships between the continuous and discr ete Gabor expansions, we present a very simple method to compute the o ptimal biorthogonal analysis window sequence rather than the complicat ed matrix computation used by others. (C) 1997 Elsevier Science B.V.