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<td valign="top" width="135"><b>Description:</b></td>
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This is a collection of MATLAB files for time-frequency analysis. 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 utilities.<br>
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NOTE: The chirplet decomposition requires the Matlab Optimization Toolbox.<br>
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For more information, please see <a href="http://tfd.sourceforge.net/" target="_blank">http://tfd.sourceforge.net</a>. See also the whale whistle example at <a href="http://tfd.sourceforge.net/Whale" target="_blank">http://tfd.sourceforge.net/Whale</a>. <br>
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<input name="fileName" value="DiscreteTFDs" type="hidden">
<input name="fileExt" value=".zip" type="hidden">
<input name="contributorId" value="802830" type="hidden">
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<td width="286"> <b class="feh4blk"> File Details</b></td>
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<td colspan="2"><img src="loadFile.do_files/blue_band_536x5.gif" alt="" width="536" height="5"></td>
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<td valign="top" width="25%"><b>File Id:</b></td>
<td width="20%">63</td>
<td valign="top" width="25%"><b>Average rating:</b></td>
<td width="29%">3.85</td>
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<td valign="top"><b>Size:</b></td>
<td>140KB</td>
<td valign="top"><b># of reviews:</b></td>
<td>29</td>
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<td valign="top"><b>Submitted:</b></td>
<td>1999-08-10</td>
<td valign="top"><b>Downloads:</b></td>
<td>20067</td>
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<td valign="top"><b>Subscribers:</b></td>
<td>22</td>
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<td valign="top"><b>Keywords:</b></td>
<td colspan="3" valign="top">time-frequency, spectrograms, chirplets, fractional fourier transform</td>
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<td valign="top"><b>Zip file contents:</b></td>
<td colspan="3" valign="top">est_d.m,
est_c.m, angle2cr.m, cr2angle.m, g_chirp.m, crlb.m, f_chirp.m,
hessian.m, fisher.m, KandQ.m, find_chirplets.m, Contents.m, Copyright,
DTFDPath.m, demo_cohen.m, demo_wigner4.m, demo_ltvf.m, demo_tcd.m,
demo_localized.m, demo_chirplets.m, GNU_GPL, Makefile, tcd.m,
localized.m, laf.m, lwigner.m, README, fracft.m, scale.m, time_shear.m,
freq_shear.m, chirp2rot.m, ToDo, wigner1.m, rihaczek1.m,
choi_williams1.m, spec1.m, margenau_hill1.m, lacf1.m, smooth1.m,
stft1.m, binomial2.m, spec2.m, stft2.m, born_jordan2.m, rihaczek2.m,
qwigner2.m, margenau_hill2.m, lacf2.m, page2.m, levin2.m, qwigner4.m,
spec4.m, stft4.m, rihaczek4.m, wigner4.m, binomial4.m,
margenau_hill4.m, richman.m, ptfd.m, ptfddb.m, tfdshift.m,
sinc_interp.m, circ.m, ltv_filter.m, add_noise.m, fmsin.m, fmpoly.m,
sig_mom.m, predictor.m, ptfd_marg.m, lconv.m, cconv.m, hermite.m,
fmcubic.m, acf.m, chirplets.m, Changes, est_tf.m, best_chirplet.m,
est_cd_global.m</td>
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<!--Acknowledgements -->
<!--Acknowledgements -->
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<td width="286"> <b class="feh4blk"> User Reviews</b></td>
<td width="228"> <div class="small" align="right">Number
of Reviews: 29</div></td>
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<td bgcolor="#dcdfe4"><b>Date</b>: 2008-04-25<br>
<strong>From</strong>: Carlos Guerrero (candres13@gmail.com) <br>
<strong>Rating</strong>:
<img src="loadFile.do_files/fullstar.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar_grey.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar_grey.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar_grey.gif" alt="" width="12" height="12" hspace="1">
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<strong>Comments</strong>: I used the twice "fmincon" with "constr" function, but it does not work yet. Has someone new news?
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<td bgcolor="#dcdfe4"><b>Date</b>: 2008-04-16<br>
<strong>From</strong>: Feng Kun (kunfengphd@gmail.com) <br>
<strong>Rating</strong>:
<img src="loadFile.do_files/fullstar.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar_grey.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar_grey.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar_grey.gif" alt="" width="12" height="12" hspace="1">
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<strong>Comments</strong>: When I run some demos, I found thant 'constr' is missing.<br>
The function should be replaced by 'fmincon'.<br>
But,I did not succeed yet. Have anybody done?
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<td bgcolor="#dcdfe4"><b>Date</b>: 2008-04-01<br>
<strong>From</strong>: Bastien Lyonnet (bastien.lyonnet@laposte.net) <br>
<strong>Rating</strong>:
<img src="loadFile.do_files/fullstar.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar_grey.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar_grey.gif" alt="" width="12" height="12" hspace="1"><img src="loadFile.do_files/fullstar_grey.gif" alt="" width="12" height="12" hspace="1">
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<strong>Comments</strong>: If anyone have the code using the 'fmincon' function better than the 'constr', please tell me.
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