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[Octave-cvsupdate] SF.net SVN: octave:[7377] trunk/octave-forge/main/comm/inst
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From: <mb...@us...> - 2010-06-01 02:37:54
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Revision: 7377
http://octave.svn.sourceforge.net/octave/?rev=7377&view=rev
Author: mborg
Date: 2010-06-01 02:37:48 +0000 (Tue, 01 Jun 2010)
Log Message:
-----------
new interleavers
Added Paths:
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trunk/octave-forge/main/comm/inst/helintrlv.m
trunk/octave-forge/main/comm/inst/helscandeintrlv.m
trunk/octave-forge/main/comm/inst/helscanintrlv.m
Added: trunk/octave-forge/main/comm/inst/helintrlv.m
===================================================================
--- trunk/octave-forge/main/comm/inst/helintrlv.m (rev 0)
+++ trunk/octave-forge/main/comm/inst/helintrlv.m 2010-06-01 02:37:48 UTC (rev 7377)
@@ -0,0 +1,72 @@
+## Copyright (C) 2010 Mark Borgerding <ma...@bo...>
+##
+## 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{outdata} =} helintrlv (@var{data}, @var{col}, @var{ngrp},@var{stp})
+## @var{col}-by-@var{ngrp}.
+## @seealso{heldeintrlv}
+## @end deftypefn
+
+function [outdata,outstate] = helintrlv(data,col,ngrp,stp,init_state)
+
+ if (nargin < 4 ||nargin>5)
+ error('usage : interlvd = helintrlv(data,col,ngrp,stp)');
+ end
+
+ if(~isscalar(col) || ~isscalar(ngrp))
+ error("col and ngrp must be integers");
+ end
+
+ if( col ~= floor(col)|| ngrp ~= floor(ngrp))
+ error("col and ngrp must be integers");
+ end
+
+ didTranspose=0;
+ if ( isvector(data) && columns(data) > rows(data) )
+ data = data.';
+ didTranspose=1;
+ end
+
+ s = size(data);
+
+ if s(1) ~= col*ngrp
+ error("The length of data must be equals to ngrp*col");
+ end
+
+ if nargin==4
+ init_state = zeros(stp*col*(col-1)/2,s(2));
+ end
+
+ outstate =[];
+ # for each column
+ for k = 1:s(2)
+ tmp = reshape( data(:,k) , ngrp, col );
+ instate = init_state(:,k);
+ outstateCol=[];
+ for k1=2:col
+ curStepSize = (k1-1)*stp;
+ tmpCol= [instate(1:curStepSize) ;tmp(:,k1)];
+ tmp(:,k1) = tmpCol(1:ngrp);
+ outstateCol=[outstateCol;tmpCol(end+1-curStepSize:end)];
+ instate = instate(curStepSize+1:end);
+ end
+ outdata(:,k) = reshape(tmp.',s(1),1);
+ outstate = [outstate outstateCol];
+ end
+
+ if didTranspose
+ outdata = outdata.';
+ end
Added: trunk/octave-forge/main/comm/inst/helscandeintrlv.m
===================================================================
--- trunk/octave-forge/main/comm/inst/helscandeintrlv.m (rev 0)
+++ trunk/octave-forge/main/comm/inst/helscandeintrlv.m 2010-06-01 02:37:48 UTC (rev 7377)
@@ -0,0 +1,24 @@
+## Copyright (C) 2010 Mark Borgerding <ma...@bo...>
+##
+## 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{outdata} =} helscandeintrlv (@var{data}, @var{nrows}, @var{ncols},@var{Nshift})
+## @var{nrows}-by-@var{ncols}.
+## @seealso{helscandeintrlv}
+## @end deftypefn
+
+function outdata = helscandeintrlv(data,Nrows,Ncols,Nshift)
+ outdata = helscanintrlv(data,Nrows,Ncols,Nrows-Nshift);
Added: trunk/octave-forge/main/comm/inst/helscanintrlv.m
===================================================================
--- trunk/octave-forge/main/comm/inst/helscanintrlv.m (rev 0)
+++ trunk/octave-forge/main/comm/inst/helscanintrlv.m 2010-06-01 02:37:48 UTC (rev 7377)
@@ -0,0 +1,62 @@
+## Copyright (C) 2010 Mark Borgerding <ma...@bo...>
+##
+## 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{outdata} =} helscanintrlv (@var{data}, @var{nrows}, @var{ncols},@var{Nshift})
+## @var{nrows}-by-@var{ncols}.
+## @seealso{helscandeintrlv}
+## @end deftypefn
+
+function outdata = helscanintrlv(data,Nrows,Ncols,Nshift)
+
+ if(nargin ~= 4 )
+ error('usage : interlvd = helscanintrlv(data,Nrows,Ncols,Nshift)');
+ end
+
+ if(~isscalar(Nrows) || ~isscalar(Ncols))
+ error("Nrows and Ncols must be integers");
+ end
+
+ if( Nrows ~= floor(Nrows)|| Ncols ~= floor(Ncols))
+ error("Nrows and Ncols must be integers");
+ end
+
+ didTranspose=0;
+ if ( isvector(data) && columns(data) > rows(data) )
+ data = data.';
+ didTranspose=1;
+ end
+
+ s = size(data);
+
+ if size(data,1) ~= Nrows*Ncols
+ error("The length of data must be equals to Ncols*Nrows");
+ end
+
+ # create the interleaving indices
+ idx0 = 0:Nrows*Ncols-1;
+ idxMod = rem(idx0,Ncols);
+ idxFlr = idx0 - idxMod;
+ inds = 1+rem(idxFlr + idxMod * Ncols * Nshift + idxMod,Nrows*Ncols);
+
+ # for each column
+ for k = 1:s(2)
+ outdata(:,k) = data(inds,k);
+ end
+
+ if didTranspose
+ outdata = outdata.';
+ end
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