A new definition of discrete quadratic time-frequency distributions

O'Toole, J. M., Mesbah, M. and Boashash, B. (2008). A new definition of discrete quadratic time-frequency distributions. In: 16th European Signal Processing Conference (EUSIPCO-08), Lausanne, Switzerland, (1-5). 25-29 August, 2008.

Author O'Toole, J. M.
Mesbah, M.
Boashash, B.
Title of paper A new definition of discrete quadratic time-frequency distributions
Conference name 16th European Signal Processing Conference (EUSIPCO-08)
Conference location Lausanne, Switzerland
Conference dates 25-29 August, 2008
Journal name European Signal Processing Conference
Place of Publication Kessariani, Greece
Publisher European Association for Signal Processing (EURASIP)
Publication Year 2008
Sub-type Fully published paper
ISSN 2219-5491
Start page 1
End page 5
Total pages 5
Language eng
Abstract/Summary Discrete time–frequency distributions (DTFDs) of discrete signals differ from their continuous counterparts. The DTFD is usually aliased and lacks some desirable mathematical properties inherent to the continuous distribution. The DTFD should, ideally, be free from aliasing and conserve all desirable properties. Two existing DTFD denitions, namely the generalised DTFD (GDTFD) and the alias-free GDTFD (AF-GDTFD), approximate this ideal: the GDTFD does not satisfy all desirable properties but is alias free; the AF-GDTFD satises most properties but is not always alias free. We propose, in this article, a new DTFD definition which is alias free and satises all desirable properties.
Subjects 280204 Signal Processing
Keyword Time frequency distribution
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
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Created: Thu, 28 Jan 2010, 22:28:18 EST by Thelma Whitbourne on behalf of Faculty Of Health Sciences