fractional order matlab toolbox


Matlab files 
The m-file frft.m computes the fast fractional Fourier transform following the algorithm of
H.M. Ozaktas, M.A. Kutay, and G. Bozdagi.
Digital computation of the fractional Fourier transform.
IEEE Trans. Sig. Proc., 44:2141--2150, 1996. 

The m-file Disfrft.m computes the discrete fractional Fourier transfrm following the algorithm of

C. Candan, M.A. Kutay, and H.M. Ozaktas.
The discrete Fractional Fourier Transform.
IEEE Trans. Sig. Proc., 48:1329--1337, 2000. 

The m-file cdpei.m computes the discrete fractional Fourier transfrm following the algorithm of

S.-C. Pei, M.-H. Yeh, and C.-C. Tseng.
Discrete fractional Fourier-transform based on orthogonal projections.
IEEE Trans. Sig. Proc., 47(5):1335--1348, 1999. 

The m-file testfrft.m is a demonstration program for the previous three routines. 

The m-file Disfrct.m computes the discrete fractional Cosine transform following the algorithm of

S.-C. Pei, M.-H. Yeh.
Discrete fractional Cosine and Sine transforms.
IEEE Trans. Sig. Proc., 49(6):1198--1207, 2001. 

The m-file Disfrst.m computes the discrete fractional Sine transfrm following the algorithm of

S.-C. Pei, M.-H. Yeh.
Discrete fractional Cosine and Sine transforms.
IEEE Trans. Sig. Proc., 49(6):1198--1207, 2001. 

The m-file testfrct.m test for Disfrct.m This generates figure 2 in the paper

S.-C. Pei, M.-H. Yeh.
Discrete fractional Cosine and Sine transforms.
IEEE Trans. Sig. Proc., 49(6):1198--1207, 2001.