The Analysis of Resolution of the Discrete Fractional Fourier Transform

Authors:
Bing Deng;Ran Tao
Affiliations:
Beijing Institute of Technology, China;Beijing Institute of Technology, China
Venue:
ICICIC '06 Proceedings of the First International Conference on Innovative Computing, Information and Control - Volume 3
Year:
2006

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Abstract

The fractional Fourier transform (FRFT) is a unified Time-Frequency transform that does not suffer from the cross terms and is suitable for processing the non stationary signal. It is required to define the corresponding analysis range and discrete resolution in the FRFT domain in order to apply the FRFT to digital signal processing field. In this paper the analysis range and resolution of the discrete FRFT are obtained according to the relationship between the Wigner distribution and the FRF