文件列表:

土耳其算法程序（程序包）\Changes (2522, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\angle2cr.m (372, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\best_chirplet.m (2879, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\cr2angle.m (388, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\crlb.m (526, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\est_c.m (1594, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\est_cd_global.m (1624, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\est_d.m (1494, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\est_tf.m (1566, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\find_chirplets.m (2823, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\fisher.m (1312, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\f_chirp.m (402, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\g_chirp.m (916, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\hessian.m (2749, 2003-07-23)
土耳其算法程序（程序包）\Chirplets\KandQ.m (7959, 2003-07-23)
土耳其算法程序（程序包）\Contents.m (3847, 2003-07-23)
土耳其算法程序（程序包）\Copyright (987, 2003-07-23)
土耳其算法程序（程序包）\Demos\demo_chirplets.m (2490, 2003-07-23)
土耳其算法程序（程序包）\Demos\demo_cohen.m (4711, 2003-07-23)
土耳其算法程序（程序包）\Demos\demo_localized.m (2804, 2003-07-23)
土耳其算法程序（程序包）\Demos\demo_ltvf.m (1262, 2003-07-23)
土耳其算法程序（程序包）\Demos\demo_tcd.m (2832, 2003-07-23)
土耳其算法程序（程序包）\Demos\demo_wigner4.m (3831, 2003-07-23)
土耳其算法程序（程序包）\DTFDPath.m (961, 2003-07-23)
土耳其算法程序（程序包）\GNU_GPL (15145, 2003-07-23)
土耳其算法程序（程序包）\Makefile (357, 2003-07-23)
土耳其算法程序（程序包）\Quartic\laf.m (944, 2003-07-23)
土耳其算法程序（程序包）\Quartic\localized.m (1799, 2003-07-23)
土耳其算法程序（程序包）\Quartic\lwigner.m (1473, 2003-07-23)
土耳其算法程序（程序包）\Quartic\tcd.m (1715, 2003-07-23)
土耳其算法程序（程序包）\Symplectic\acf.m (511, 2003-07-23)
土耳其算法程序（程序包）\Symplectic\add_noise.m (599, 2003-07-23)
土耳其算法程序（程序包）\Symplectic\cconv.m (510, 2003-07-23)
土耳其算法程序（程序包）\Symplectic\chirp2rot.m (605, 2003-07-23)
土耳其算法程序（程序包）\Symplectic\chirplets.m (1136, 2007-02-03)
土耳其算法程序（程序包）\Symplectic\choi_williams1.m (1710, 2003-07-23)
土耳其算法程序（程序包）\Symplectic\circ.m (421, 2003-07-23)
土耳其算法程序（程序包）\Symplectic\fmcubic.m (555, 2003-07-23)
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DiscreteTFDs Copyright (c) 1997, 19***, 1999 Jeffrey C. O'Neill (jeffo@bu.edu) Copyright (c) 19***, 1999 Boston University Copyright (c) 1997, 19*** L'Ecole Normale Superieure de Lyon Copyright (c) 1997 The Regents of the University of Michigan All Rights Reserved 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 http://mdsp.bu.edu/jeffo or you can send me an email jeffo@bu.edu 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. Jeff O'Neill

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