Arno J. van Leest

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In this paper we consider non-separable Gabor schemes for discrete-time signals. We show that three different interpretations of a non-separable lattice lead to three different types of implementation. First, a non-separable lattice can be seen as a union of rectangular lattices, which leads to a filter bank implementation. Secondly, a rectangular lattice(More)
Gabor’s signal expansion and the Gabor transform are formulated on a general, nonseparable time-frequency lattice instead of on the traditional rectangular lattice. The representation of the general lattice is based on the rectangular lattice via a shear operation, which corresponds to a description of the general lattice by means of a lattice generator(More)