1 Department of Mathematics, Technical University of Denmark2 Department of Electrical Engineering, Technical University of Denmark
In this paper we consider fractional splines as windows for Gabor frames. We introduce two new types of symmetric, fractional splines in addition to one found by Unser and Blu. For the finite, discrete case we present two families of splines: One is created by sampling and periodizing the continuous splines, and one is a truly finite, discrete construction. We discuss the properties of these splines and their usefulness as windows for Gabor frames and Wilson bases.
Wilson bases; Fractional splines; Gabor systems; Hurwitz zeta function