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Time-frequency analysis by a discrete fractional evolutionary transform

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3 Author(s)
Onen, E. ; Elektrik-Elektron. Muhendisligi Bolumu Istanbul Univ., Istanbul, Turkey ; Akan, A. ; Chaparro, L.F.

In this paper, we present a discrete fractional evolutionary transform (DFET) for the evolutionary spectral estimation of multi-component, wide band signals. The time-varying kernel of this transform is used to calculate the evolutionary spectrum. The DFET kernel may be obtained from the coefficients of a discrete fractional Gabor expansion. The proposed DFET provides a tool for a high-resolution representation of signal components with linear instantaneous frequencies.

Published in:

Signal Processing and Communications Applications Conference (SIU), 2010 IEEE 18th

Date of Conference:

22-24 April 2010