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rhartley

PURPOSE ^

RHARTLEY Calculate the Hartley transform of real data Y=(X,N)

SYNOPSIS ^

function y=rhartley(x,n)

DESCRIPTION ^

RHARTLEY Calculate the Hartley transform of real data Y=(X,N)
 Data is truncated/padded to length N if specified.
 The inverse transformation is x=hartley(y,n)/n

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function y=rhartley(x,n)
0002 %RHARTLEY Calculate the Hartley transform of real data Y=(X,N)
0003 % Data is truncated/padded to length N if specified.
0004 % The inverse transformation is x=hartley(y,n)/n
0005 
0006 %      Copyright (C) Mike Brookes 1998
0007 %      Version: $Id: rhartley.m 713 2011-10-16 14:45:43Z dmb $
0008 %
0009 %   VOICEBOX is a MATLAB toolbox for speech processing.
0010 %   Home page: http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html
0011 %
0012 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
0013 %   This program is free software; you can redistribute it and/or modify
0014 %   it under the terms of the GNU General Public License as published by
0015 %   the Free Software Foundation; either version 2 of the License, or
0016 %   (at your option) any later version.
0017 %
0018 %   This program is distributed in the hope that it will be useful,
0019 %   but WITHOUT ANY WARRANTY; without even the implied warranty of
0020 %   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0021 %   GNU General Public License for more details.
0022 %
0023 %   You can obtain a copy of the GNU General Public License from
0024 %   http://www.gnu.org/copyleft/gpl.html or by writing to
0025 %   Free Software Foundation, Inc.,675 Mass Ave, Cambridge, MA 02139, USA.
0026 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
0027 
0028 if nargin < 2
0029   y=fft(real(x));
0030 else
0031   y=fft(real(x),n);
0032 end
0033 y=real(y)-imag(y);

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