Title :
Decimated time-frequency distributions
Author :
O´Hair, J.R. ; Suter, Bruce W.
Author_Institution :
AFIT/ENG, US Air Force Inst. of Technol., Wright-Patterson AFB, OH, USA
Abstract :
The decimated generalized discrete time-frequency distribution (D-GDTFD) was introduced by O´Hair and Suter (see IEEE International Conference on Circuits and Systems, London, U.K., 30 May-2 June 1994). It trades bandwidth for speed of implementation and requires greatly reduced storage over the generalized discrete time-frequency distribution (GDTFD). A new formulation for the D-GDTFD is presented which is based upon the singular value decomposition. The performance characteristics of the D-GDTFD are discussed as part of an example based upon the binomial distribution. The error between the binomial GDTFD and D-GDTFD is also examined
Keywords :
binomial distribution; signal representation; singular value decomposition; time-frequency analysis; D-GDTFD; Zak transform; bandwidth; binomial GDTFD; binomial distribution; decimated time-frequency distributions; error; generalized discrete time-frequency distribution; performance characteristics; reduced storage; signal representation; singular value decomposition; speed; Bandwidth; Buildings; Discrete transforms; Eigenvalues and eigenfunctions; Kernel; Sampling methods; Singular value decomposition; Spectrogram; Time frequency analysis;
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1994., Proceedings of the IEEE-SP International Symposium on
Conference_Location :
Philadelphia, PA
Print_ISBN :
0-7803-2127-8
DOI :
10.1109/TFSA.1994.467234
