Title :
Discrete fractional Fourier transform
Author :
Pei, Soo-Chang ; Yeh, Min-Hung
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
The continuous fractional Fourier transform (FRFT) represents a rotation of signal in time-frequency plane, and it has become an important tool for signal analysis. A discrete version of fractional Fourier transform has been developed but its results do not match those of continuous case. In this paper, we propose a new version of discrete fractional Fourier transform (DFRFT). This new DFRFT will provide similar transforms as those of continuous fractional Fourier transform and also hold the rotation properties
Keywords :
discrete Fourier transforms; signal processing; discrete version; fractional Fourier transform; rotation properties; signal analysis; time-frequency plane; Computer aided software engineering; Discrete Fourier transforms; Discrete transforms; Eigenvalues and eigenfunctions; Equations; Fourier transforms; Kernel; Matrix decomposition; Signal analysis; Time frequency analysis;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.541780
