contents.m

来自「Matlab时频分析工具箱,希望能对大家有所帮助啊」· M 代码 · 共 94 行

% LTFAT - Basic time/frequency analysis
%
%  Peter L. Soendergaard, 2007.
%
%  Basic Time/Frequency analysis
%    TCONV          -  Twisted convolution.
%    DSFT           -  Discrete Symplectic Fourier Transform
%    ZAK            -  Zak transform.
%    IZAK           -  Inverse Zak transform.
%    TFMAT          -  Matrix of transform or operator in LTFAT.
%
%  Gabor systems.
%    DGT            -  Discrete Gabor transform.
%    IDGT           -  Inverse discrete Gabor transform.
%    DGT2           -  2D Discrete Gabor transform.
%    IDGT2          -  2D Inverse discrete Gabor transform.
%
%  Wilson bases and MDCT.
%    DWILT          -  Discrete Wilson transform.
%    IDWILT         -  Inverse discrete Wilson transform.
%    DWILT2         -  2-D Discrete Wilson transform.
%    IDWILT2        -  2-D inverse discrete Wilson transform.
%    MDCT           -  Modified Discrete Cosine transform.
%    IMDCT          -  Inverse MDCT
%    MDCT2          -  2-D MDCT
%    IMDCT2         -  2-D inverse MDCT
%
%  Window functions.
%    PGAUSS         -  Periodized Gaussian.
%    PSECH          -  Periodized SECH.
%    PHERM          -  Periodized Hermite functions.
%    PBSPLINE       -  Periodized B-spline.
%    FIRWIN         -  FIR windows (Hanning,Hamming,Blackman,...).
%    FIRKAISER      -  FIR Kaiser-Bessel window.
%    IIRPAR         -  Easy calculation of IIR parameters.
%    FIR2IIR        -  Extend FIR window to IIR window.
%    IIR2FIR        -  Cur IIR window to FIR window.
%
%  Reconstructing windows
%    CANDUAL        -  Canonical dual window.
%    CANTIGHT       -  Canonical tight window.
%    PROJDUAL       -  Dual window by projection.
%    MIXDUAL        -  Dual window by mixing windows.
%    WILORTH        -  Window of Wilson/MDCT orthonormal basis.
%    WILDUAL        -  Riesz dual window of Wilson/MDCT basis. 
%
%  Time/Frequency operators.
%    GABMUL         -  Gabor multiplier
%    GABMULEIGS     -  Eigenpairs of Gabor multiplier.
%    GABMULAPPR     -  Best approximation by a Gab. mult.
%    SPREADOP       -  Spreading operator.
%    SPREADINV      -  Symbol of inverse spreading operator.
%    SPREADADJ      -  Symbol of adjoint spreading operator.
%    SPREADFUN      -  Symbol of best approximation to matrix.
%    SPREADEIGS     -  Eigenpairs of Gabor multiplier.
%
%  Conditions numbers.
%    GFBOUNDS       -  Frame bounds of discrete Gabor frame.
%    WILBOUNDS      -  Frame bounds of Wilson basis.
%    GFDUALNORM     -  Test if two windows are dual.
%
%  Reassignment and instantaneous time/frequency.
%    INSTTF_DGT     -  Instantaneous time/frequency from signal.
%    INSTTF_ABS     -  Instantaneous time/frequency from spectrogram.
%    INSTTF_PHASE   -  Instantaneous time/frequency from phase.
%    REASSIGN       -  Reassign positive TF distribution.
%
%  Phase conversions
%    PHASELOCK      -  Phase Lock Gabor coefficients to time.. 
%    IPHASELOCK     -  Inverse phase locking.
%    SYMPHASE       -  Convert to symmetric phase.
%
%  Plots.
%    SGRAM          -  Spectrogram based on DGT
%    MAGRESP        -  Magnitude response plot
%    RESGRAM        -  Plot of reassigned spectrogram.
%
%  For help, errors, suggestions etc. please send email to
%  [e-mail].

% 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/>.