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Matlab时频分析工具箱,希望能对大家有所帮助啊

% LTFAT - Signals
%
%  Synthetic signals
%    SHAH           -  Shah distribution.
%    PCHIRP         -  Periodic chirp.
%    CTESTFUN       -  Complex valued test function.
%
%  Sound signals.
%    BAT            -  Bat chirp.
%    BATMASK        -  Mask for bat signal.
%    DOPPLER        -  Sound of passing train.
%    GREASY         -  Woman speaking the word 'greasy'
%    LINUS          -  Linus pronouncing Linux.
%    GSPI           -  Glockenspiel test signal.
%    OTOCLICK       -  Click-evoked otoacoustic emmision. 
%
%  Images.
%    CAMERAMAN      -  Greyscale image of the cameraman.
%
%  Other test signals are available from:
%
%   http://sound.media.mit.edu/mpeg4/audio/sqam/

% This program is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
% 
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
% GNU General Public License for more details.
% 
% You should have received a copy of the GNU General Public License
% along with this program.  If not, see <http://www.gnu.org/licenses/>.
%   http://www.dogstar.dantimax.dk/testwavs/