Results 141 to 145 of about 2,662 (145)

The analysis of the discrete fractional Fourier transform algorithms

2009 Canadian Conference on Electrical and Computer Engineering, 2009
The discrete formal FRFT is difficult to obtained by the directly sampling the continuous FRFT because the kernel function of the continuous fractional Fourier transform (FRFT) exhibits drastic oscillation and the oscillation amplitude has the distinct difference from the different order of the FRFT.
null Qi-Wen Ran, null Hai-Ying Zhang, null Zhong-Zhao Zhang, null Xue-Jun Sha   +3 more
openaire   +1 more source

On the Grunbaum commuter based discrete fractional Fourier transform

2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004
The basis functions of the continuous fractional Fourier transform (FRFT) are linear chirp signals that are suitable for time-frequency analysis of signals with chirping time-frequency content. Efforts to develop a discrete computable version of the fractional Fourier transform (DFRFT) have focussed on furnishing an orthogonal set of eigenvectors for ...
B. Santhanam, J.G. Vargas-Rubio
openaire   +1 more source

A method for the discrete fractional Fourier transform computation

IEEE Transactions on Signal Processing, 2003
A new method for the discrete fractional Fourier transform (DFRFT) computation is given in this paper. With the help of this method, the DFRFT of any angle can be computed by a weighted summation of the DFRFTs with the special angles.
Yeh, Min-Hung, Pei, Soo-Chang
openaire   +1 more source

Discrete Fourier Transforms of Fractional Processes [PDF]

, 1999
Discrete Fourier transforms (dft's) of fractional processes are studied and an exact representation of the dft is given in terms of the component data. The new representation gives the frequency domain form of the model for a fractional process, and is particularly useful in analyzing the asymptotic behavior of the dft and periodogram in the ...
openaire  

Photonic Fractional Fourier Transformation Based on Discrete-Frequency Processing

Journal of Lightwave Technology, 2022
Xiangzhi Xie, Shanhong Guan, Jilong Li, Feifei Yin, Kun Xu, Yitang Dai   +5 more
openaire   +1 more source