Fast computation of dual Gabor windows for non-separable lattices
نویسنده
چکیده
In this paper we present an attractive computation technique for approximating the continuous-time dual window for the Gabor signal expansion on a non-separable time-frequency lattice instead of on the traditional rectangular lattice. This non-separable lattice is described by means of a lattice generator matrix. The computation technique is based on a generalized Wexler-Raz identity and avoids the estimation of the frame bounds. Keywords— Gabor transform, Gabor’s signal expansion, time-frequency signal analysis
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