Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
Kook Yeon Kwak , Dept. of Electr. Eng., Polytechnic Univ., Brooklyn, NY, USA
R.A. Hadadd , Dept. of Electr. Eng., Polytechnic Univ., Brooklyn, NY, USA
A class of new orthogonal transforms, time localizable linear transform (TLLT), which is constructed from a traditional linear transform and gives the nonuniform time-frequency tiling was introduced by authors. Time localizable DFT (TLDFT) is a subclass of TLLT constructed from DFT. In this paper, we are concerned with time-frequency characteristics of TLDFT bases to analyze qualitatively the performance of TLDFT in the time-frequency decomposition. Specially we investigate their phase characteristic since TLDFT bases concentrate their energies into the associated time locations and are inherently non-symmetric over the entire transform length.<
time-frequency analysis, discrete Fourier transforms, signal processing
Kook Yeon Kwak and R. Hadadd, "Time-frequency analysis of time localizable linear transform based on DFT," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 1095-1099.