资源简介
把你想进行实验分析的数据先进行spwvd分布,然后在进行下一步,可以运行,你指的拥有,不行的话,你就举报。
代码片段和文件信息
function [tfrtf] = tfrspwv(xtNghtrace);
%TFRSPWV Smoothed Pseudo Wigner-Ville time-frequency distribution.
% [TFRTF]=TFRSPWV(XTNGHTRACE) computes the Smoothed Pseudo
% Wigner-Ville distribution of a discrete-time signal X or the
% cross Smoothed Pseudo Wigner-Ville representation between two
% signals.
%
% X : signal if auto-SPWV or [X1X2] if cross-SPWV.
% T : time instant(s) (default : 1:length(X)) .
% N : number of frequency bins (default : length(X)).
% G : time smoothing window G(0) being forced to 1.
% (default : Hamming(N/10)).
% H : frequency smoothing window in the time-domain
% H(0) being forced to 1 (default : Hamming(N/4)).
% TRACE : if nonzero the progression of the algorithm is shown
% (default : 0).
% TFR : time-frequency representation. When called without
% output arguments TFRSPWV runs TFRQVIEW.
% F : vector of normalized frequencies.
%
% Example :
% sig=fmlin(1280.050.15)+fmlin(1280.30.4);
% g=tftb_window(15‘Kaiser‘); h=tftb_window(63‘Kaiser‘);
% tfrspwv(sig1:12864gh1);
%
% See also all the time-frequency representations listed in
% the file CONTENTS (TFR*)
% F. Auger May-August 1994 July 1995.
% Copyright (c) 1996 by CNRS (France).
%
% 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 2 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 write to the Free Software
% Foundation Inc. 51 Franklin St Fifth Floor Boston MA 02110-1301 USA
if (nargin == 0)
error(‘At least 1 parameter required‘);
end;
[xrowxcol] = size(x);
if (xcol==0)|(xcol>2)
error(‘X must have one or two columns‘);
end
if (nargin <= 2)
N=xrow;
elseif (N<0)
error(‘N must be greater than zero‘);
elseif (2^nextpow2(N)~=N)
fprintf(‘For a faster computation N should be a power of two\n‘);
end;
hlength=floor(N/4); hlength=hlength+1-rem(hlength2);
glength=floor(N/10);glength=glength+1-rem(glength2);
if (nargin == 1)
t=1:xrow; g = tftb_window(glength); h = tftb_window(hlength); trace = 0;
elseif (nargin == 2)|(nargin == 3)
g = tftb_window(glength); h = tftb_window(hlength); trace = 0;
elseif (nargin == 4)
h = tftb_window(hlength); trace = 0;
elseif (nargin == 5)
trace = 0;
end;
[trowtcol] = size(t);
if (trow~=1)
error(‘T must only have one row‘);
end;
[growgcol]=size(g); Lg=(grow-1)/2; % g=g/sum(g);
if (gcol~=1)|(rem(grow2)==0)
error(‘G must be a smoothing window with odd l
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 1118292 2018-11-12 20:45 平滑伪Wigner-Ville分布\1224_2_2磨损击穿C-OUT.xlsx
文件 4368 2005-10-13 23:14 平滑伪Wigner-Ville分布\tfrspwv.m
文件 5356 2005-10-13 23:14 平滑伪Wigner-Ville分布\tftb_window.m
文件 710 2018-11-12 20:53 平滑伪Wigner-Ville分布\Unti
目录 0 2018-11-12 21:12 平滑伪Wigner-Ville分布
----------- --------- ---------- ----- ----
1128726 5
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