X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Fcommunications-1.1.1%2Fgenqamdemod.m;fp=octave_packages%2Fcommunications-1.1.1%2Fgenqamdemod.m;h=b98c87cbb6036cdc9385817a2a36151df9e97f02;hp=0000000000000000000000000000000000000000;hb=c880e8788dfc484bf23ce13fa2787f2c6bca4863;hpb=1705066eceaaea976f010f669ce8e972f3734b05 diff --git a/octave_packages/communications-1.1.1/genqamdemod.m b/octave_packages/communications-1.1.1/genqamdemod.m new file mode 100644 index 0000000..b98c87c --- /dev/null +++ b/octave_packages/communications-1.1.1/genqamdemod.m @@ -0,0 +1,38 @@ +## Copyright (C) 2007 Sylvain Pelissier +## +## 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 . + +## -*- texinfo -*- +## @deftypefn {Function File} {[@var{z}] =} genqamdemod(@var{y},@var{const}) +## Compute the general quadrature amplitude demodulation of y. +## @seealso{genqammod,qammod,qamdemod} +## @end deftypefn + +function z = genqamdemod(y,const) + if ( nargin < 1 || nargin > 2) + error('usage : z = genqamdemod(y,const)'); + end + + if(isvector(const) ~= 1) + error('const must be a vector'); + end + + for k = 1:size(y,1) + for l = 1:size(y,2) + [val z(k,l)] = min(abs(y(k,l)-const)); + end + end + + z = z -1; +