New : download here the beta version.
This project is an extension of the the Matlab Time-Frequency Toolbox. The Matlab Time-Frequency Toolbox is a collection of about 100 M-files, developed for the analysis of non-stationary signals using time-frequency distributions. It consists in groups of signal generation files, processing files and post-processing files (including visualization tools).
The toolbox contains numerous algorithms for time-frequency signal analysis, with special emphasis on quadratic energy distributions within Cohen's class and the affine class, including most recent developments based on reassignment.
ANSI C language programmation
This is the home page of a new project, which consists in porting the M-files of the toolbox in C language, in order to have a quicker computation, and a portable package (ANSI C).
Each program consists of a ANSI C language computation module, and a Matlab interface module.
The Time-Frequency Toolbox results from a research effort conducted under the auspices of the French CNRS (Centre National de la Recherche Scientifique) within its "Groupement de Recherche" : the GDR-PRC ISIS
Calendar of the project
How to join the project
At the moment, we are looking for Beta-testers (a good knowledge of time-frequency distributions is required).
Want to join ? Send a mail to firstname.lastname@example.org !
The execution of the ANSI C programs is quicker than the Matlab version: for a 256 points signal, the execution is two times shorter for tfrsp, tfrwv and tfrpwv, and about 40 times for the other distributions !
The authors make no warranty with respect to this program, its quality, accuracy for a particular purpose. The users assume the entire risk as to its quality or accuracy.
If you found any bug, please report the problem including your computer's characteristics, the OS, and the context of the bug.
Do not hesitate to contact us : email@example.com
Page created and maintained by Manuel Davy. Last change: February 21, 2001.
This page is inspired of the home page of the Matlab time-frequency toolbox, written by F. Auger and E. Chassande-Mottin.