文件列表:

synchrosqueezing\compile_synsq.m (376, 2011-07-14)
synchrosqueezing\curve_ext.c (3887, 2011-07-14)
synchrosqueezing\curve_ext.m (894, 2011-07-14)
synchrosqueezing\curve_ext_multi.m (1817, 2011-07-14)
synchrosqueezing\curve_ext_recon.m (1039, 2011-07-14)
synchrosqueezing\curve_ext_snr.m (1206, 2011-07-14)
synchrosqueezing\cwt_adm.m (885, 2011-07-14)
synchrosqueezing\cwt_bd_loc.m (764, 2011-07-14)
synchrosqueezing\cwt_freq_direct.m (1455, 2011-07-14)
synchrosqueezing\cwt_freq.m (2424, 2012-02-26)
synchrosqueezing\cwt_fw.m (3296, 2012-02-20)
synchrosqueezing\cwt_iw.m (1778, 2011-07-14)
synchrosqueezing\dft_fw.m (1165, 2012-02-20)
synchrosqueezing\diff_mex.c (2146, 2011-07-14)
synchrosqueezing\est_riskshrink_thresh.m (1120, 2012-06-30)
synchrosqueezing\example_trial.mat (13108, 2011-07-14)
synchrosqueezing\gsynsq.fig (22968, 2011-07-14)
synchrosqueezing\gsynsq.m (25652, 2012-02-16)
synchrosqueezing\p2up.m (659, 2011-07-14)
synchrosqueezing\padsignal.m (215, 2012-02-20)
synchrosqueezing\plot_ext_curves_cmp.m (2801, 2012-06-30)
synchrosqueezing\plot_ext_curves.m (2092, 2011-07-14)
synchrosqueezing\stft_fw.m (1154, 2012-02-20)
synchrosqueezing\stft_iw.m (1545, 2012-02-20)
synchrosqueezing\synsq_adm.m (1377, 2011-07-14)
synchrosqueezing\synsq_bd_loc.m (860, 2011-07-14)
synchrosqueezing\synsq_cwt_fw.m (3624, 2011-07-14)
synchrosqueezing\synsq_cwt_iw.m (1483, 2011-07-14)
synchrosqueezing\synsq_cwt_squeeze.m (2418, 2011-07-14)
synchrosqueezing\synsq_cwt_squeeze_mex.c (3324, 2011-07-14)
synchrosqueezing\synsq_filtered_time_quantile.m (2750, 2011-07-14)
synchrosqueezing\synsq_filter_pass.m (1664, 2011-07-14)
synchrosqueezing\tplot.m (5939, 2012-02-26)
synchrosqueezing\tplot_power.m (3144, 2012-02-20)
synchrosqueezing\trial_xo_signal.mat (12149, 2011-07-14)
synchrosqueezing\wfiltfn.m (4785, 2011-07-14)
synchrosqueezing\wfilth.m (2668, 2011-07-14)
util\equantile.m (2559, 2011-07-31)
util\plot_markers.m (1352, 2011-07-14)
... ...

Synchrosqueezing Toolbox v1.1 Authors: Eugene Brevdo (http://www.math.princeton.edu/~ebrevdo/) If you use this code in your research, please include the citations to papers [2,3] below. Acknowledgements ------------------ Hau-tieng Wu and Ingrid Daubechies were instrumental in the creation of the underlying ideas behind the Synchrosqueezing transform code in this toolbox. The file curve_ext.c was authored by Jianfeng Lu (now at NYU CIMS). Introduction -------------- This toolbox implements several time-frequency and time-scale analysis methods, as described in [1,2,3]. These include: 1. Forward and inverse Discrete Wavelet Transform (a discretization of the continuous wavelet transform, so we will call it cwt). 2. Forward and inverse Wavelet-based Synchrosqueezing (synsq_cwt). 3. Various plotting and curve extraction utilities to go with cwt and synsq_cwt. 4. A GUI (the Synchrosqueezing GUI) for analysis, filtering, denoising, and signal extraction. This allows the simple, fast, initial analysis via Synchrosqueezing. Installation ------------- 0. You will need the MATLAB Image Processing toolbox for some of the GUI filtering tools used by gsynsq (see basic command reference below). 1. Put the contents of the synchrosqueezing toolbox somewhere (say, $HOME/matlab/). 2. Add the new directories to your path permanently; e.g., add the following to your startup.m: addpath ~/matlab/synchrosqueezing; addpath ~/matlab/util; 3. Go into the new directory and compile the necessary .mex files: cd ~/matlab/synchrosqueezing; compile_synsq; Basic command reference ------------------------ gsynsq: The synchrosqueezing GUI. Run it without any parameters and use the menu items and keyboard shortcuts to analyze signals. To import time/signal vectors from your workspace, use file->import (control+I). To export analysis output when done, use file->export (control+E). This GUI calls, and provides examples for using, many of the functions described below. cwt_fw, cwt_iw: wavelet forward/inverse transform dft_fw: discrete fourier series synsq_cwt_fw, synsq_cwt_iw: wavelet-based synchrosqueezing forward/inverse transform. est_riskshrink_thresh: RiskShrink threshold estimator for denoising signals. tplot, tplot_power: plotting of output of cwt and synsq_cwt transforms. curve_ext_*: curve extraction from output of synsq_cwt plot_ext_curves*: associated plotting functions synsq_filter_pass: frequency-region filtering in synchrosqueezing domain. References ------------- 1. Mallat, S., Wavelet Tour of Signal Processing 3rd ed. 2. E. Brevdo, N.S. Fuckar, G. Thakur, and H-T. Wu, "The Synchrosqueezing algorithm: a robust analysis tool for signals with time-varying spectrum," 2011. 3. I. Daubechies, J. Lu, H.T. Wu, "Synchrosqueezed Wavelet Transforms: a tool for empirical mode decomposition", 2010.

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