File	Date	Author	Commit
Chirplets	2014-12-17	Jeff O'Neill	[c34287] Initial commit
Demos	2014-12-17	Jeff O'Neill	[c34287] Initial commit
PTFR	2014-12-18	Jeff O'Neill	[2f60e3] Added files received from Prof. Dr. Z.K Peng
Quartic	2014-12-17	Jeff O'Neill	[c34287] Initial commit
Symplectic	2014-12-17	Jeff O'Neill	[c34287] Initial commit
TypeI	2014-12-17	Jeff O'Neill	[c34287] Initial commit
TypeII	2014-12-17	Jeff O'Neill	[c34287] Initial commit
TypeIV	2014-12-17	Jeff O'Neill	[c34287] Initial commit
Utils	2014-12-17	Jeff O'Neill	[c34287] Initial commit
Changes	2014-12-17	Jeff O'Neill	[c34287] Initial commit
Contents.m	2014-12-17	Jeff O'Neill	[c34287] Initial commit
Copyright	2014-12-17	Jeff O'Neill	[c34287] Initial commit
DTFDPath.m	2014-12-17	Jeff O'Neill	[c34287] Initial commit
GNU_GPL	2014-12-17	Jeff O'Neill	[c34287] Initial commit
Makefile	2014-12-17	Jeff O'Neill	[c34287] Initial commit
README	2014-12-17	Jeff O'Neill	[c34287] Initial commit
ToDo	2014-12-17	Jeff O'Neill	[c34287] Initial commit

Read Me

DiscreteTFDs
See DiscreteTFDs/Copyright

This is a collection of Matlab files for time-frequency
analysis.  However, if you don't have Matlab, you can try Octave
	http://www.che.wisc.edu/octave/
or SciLab
	http://www-rocq.inria.fr/scilab/

These programs are either a result of my research or something that I
found useful enough to spend the time to implement.  Included are: a
rigorous implementation of time-frequency distributions (Cohen class),
some quartic time-frequency distributions, chirplet decomposition based
on maximum likelihood estimation, fractional Fourier transform,
time-varying filtering, and other useful little utilities.  There
isn't a manual, but you can find details in my papers on the 
DiscreteTFDs website.

The files are located in several sub-directories:

  Chirplets  -- atomic decomposition based on maximum likelihood estimation
  Demos      -- demonstrations to get you started
  Symplectic -- symplectic transformations (fractional Fourier transform)
  TypeI      -- routines for computing type I TFDs (the Cohen class)
  TypeII     -- routines for computing type II TFDs
  TypeIV     -- routines for computing type IV TFDs
  Quartic    -- some quartic functions from my research
  Utils      -- some useful utilities

You will need to add something like the follwing lines to your 
startup.m file (do not put a trailing '/' at the end of p!):

	p = '/home/jeffo/matlab/DiscreteTFDs';
	path(path, p)
	DTFDPath(p)
	clear p

If you are using a Macintosh or MS Windows, then you will need to edit 
DTFDPath.m to reflect your system path conventions.

At the MATLAB prompt type "help DiscreteTFDs" for a list of available 
functions, and use "help" to get information on each function.

For someone who knows very little about the area of TFDs and wants to
experiment, I would recommend using binomial2, born_jordan2, and
spec2 with window lengths ranging from 16 to 128.

This is likely the last ever update to DiscreteTFDs.

Thanks to Steven Van Vaerenbergh for providing updates to allow
DiscreteTFDs to work with the latest version of the Matlab Optimization
toolbox.

Jeff O'Neill