Mercurial > forge
view main/comm/inst/fmmod.m @ 9666:67d4cfc5eeb3 octave-forge
comm: update license to GPLv3+
author | carandraug |
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date | Tue, 13 Mar 2012 04:31:21 +0000 |
parents | 063e3a8e6ed0 |
children |
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## Copyright (C) 2007 Sylvain Pelissier <sylvain.pelissier@gmail.com> ## ## 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/>. ## -*- texinfo -*- ## @deftypefn {Function File} fmmod (@var{x},@var{fc},@var{fs}) ## Create the FM modulation of the signal x with carrier frequency fs. Where x is sample at frequency fs. ## @seealso{ammod,fmdemod,amdemod} ## @end deftypefn function [s] = fmmod(m,fc,fs,freqdev) if(nargin < 3) usage('s = my_fmmod(m,fc,fs,freqdev)'); end l = length(m); t=0:1./fs:(l-1)./fs; int_m = cumsum(m)./fs; s = cos(2*pi.*fc.*t + 2*pi.*freqdev.*int_m);