1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
function h=convolve(f,g,varargin)
%-*- texinfo -*-
%@deftypefn {Function} convolve
%@verbatim
%CONVOLVE Convolution
% Usage: h=convolve(f,g);
%
% CONVOLVE has been deprecated. Please use LCONV instead.
%
% A call to CONVOLVE(f,g) can be replaced by :
%
% lconv(f,g);
%
%@end verbatim
%@strong{Url}: @url{http://ltfat.github.io/doc/deprecated/convolve.html}
%@seealso{lconv}
%@end deftypefn
% Copyright (C) 2005-2016 Peter L. Soendergaard <peter@sonderport.dk>.
% This file is part of LTFAT version 2.3.1
%
% 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/>.
warning(['LTFAT: CONVOLVE has been deprecated, please use LCONV ' ...
'instead. See the help on LCONV for more details.']);
if nargin<2
error('%s: Too few input parameters.',upper(mfilename));
end;
definput.keyvals.L=[];
definput.keyvals.dim=[];
[flags,kv,L,dim]=ltfatarghelper({'L','dim'},definput,varargin);
[f,L1,Lf,Wf,dimout,permutedsize_f,order_f]=assert_sigreshape_pre(f,L,dim,'CONVOLVE');
[g,L2,Lg,Wg,dimout,permutedsize_g,order_g]=assert_sigreshape_pre(g,L,dim,'CONVOLVE');
Lh=Lf+Lg-1;
if (Wf>1) && (Wg>1)
error('%s: Only one of the inputs can be multi-dimensional.',upper(mfilename));
end;
W=max(Wf,Wg);
if Wf<W
f=repmat(f,1,W);
end;
if Wg<W
g=repmat(g,1,W);
end;
if isreal(f) && isreal(g)
h=comp_ifftreal(comp_fftreal(postpad(f,Lh)).*...
comp_fftreal(postpad(g,Lh)),Lh);
else
h=ifft(fft(postpad(f,Lh)).*...
fft(postpad(g,Lh)));
end;
|
