A parametric class of discrete Gabor expansions

作者: Shidong Li , D.M. Healy

DOI: 10.1109/78.485917

关键词: Simple (abstract algebra)Algebraic numberStructure (category theory)Signal processingGabor waveletHilbert spaceParametric statisticsApplied mathematicsMathematicsDiscretizationDiscrete mathematics

摘要: The Gabor expansion and its discretization have been widely studied, many potential applications suggested in various signal processing problems. A new approach to the study of discrete (DGE) is introduced analyzed detail using theory pseudoframe decompositions. parametric analytical formula for a class different analysis sequences derived. It simple algebraic rather than another abstract system equations. For first time, structure questioned. We show that while there infinite possess (translation complex modulation) structure, are also arbitrary forms. Simulation results provided demonstrate proposed algorithms. DGE by means decompositions reveals much broader mathematical perspective on DGE. general algorithm derived provides feasible platform optimizations expansions arising from applications. This an area can surely be exploited as algorithms DGEs become known more intensive.

参考文章(18)
John J. Benedetto, Gabor Representations and Wavelets. ,(1987)
P.D. Einziger, Gabor's expansion of an aperture field in exponential elementary beams Electronics Letters. ,vol. 24, pp. 665- 666 ,(1988) , 10.1049/EL:19880450
Akram Aldroubi, Portraits of frames Proceedings of the American Mathematical Society. ,vol. 123, pp. 1661- 1668 ,(1995) , 10.1090/S0002-9939-1995-1242070-5
Rogelio Balart, Matrix reformulation of the Gabor transform Optical Engineering. ,vol. 31, pp. 1235- 1242 ,(1992) , 10.1117/12.57517
I. Daubechies, The wavelet transform, time-frequency localization and signal analysis IEEE Transactions on Information Theory. ,vol. 36, pp. 961- 1005 ,(1990) , 10.1109/18.57199
J. Wexler, S. Raz, Discrete Gabor expansions Signal Processing. ,vol. 21, pp. 207- 220 ,(1990) , 10.1016/0165-1684(90)90087-F
Akram Aldroubi, Michael Unser, Families of multiresolution and wavelet spaces with optimal properties Numerical Functional Analysis and Optimization. ,vol. 14, pp. 417- 446 ,(1993) , 10.1080/01630569308816532
Shie Qian, Kan Chen, Shidong Li, Optimal biorthogonal functions for finite discrete-time Gabor expansion Signal Processing. ,vol. 27, pp. 177- 185 ,(1992) , 10.1016/0165-1684(92)90006-I
S. Qian, D. Chen, Discrete Gabor transform IEEE Transactions on Signal Processing. ,vol. 41, pp. 2429- 2438 ,(1993) , 10.1109/78.224251