jens
f59fb8f67d
git-svn-id: http://moon:8086/svn/matlab/trunk@100 801c6759-fa7c-4059-a304-17956f83a07c
61 lines
1.4 KiB
Objective-C
Executable File
61 lines
1.4 KiB
Objective-C
Executable File
## Copyright (C) 2018 Jens Ahrensfeld
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##
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## This program is free software; you can redistribute it and/or modify it
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## under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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## -*- texinfo -*-
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## @deftypefn {Function File} {@var{retval} =} gardner_eval (@var{input1}, @var{input2})
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##
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## @seealso{}
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## @end deftypefn
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## Author: Jens Ahrensfeld <ahrensfeld@w2ess001vm>
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## Created: 2018-12-13
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function gardner_eval (x, nBitsPerSample, phase)
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if mod(nBitsPerSample, 2)
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error ("nBitsPerSample must be divisable by 2!");
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end
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Z = zeros(1,3);
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countReload = nBitsPerSample/2;
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count = countReload-1;
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N = length(x);
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vc = 0;
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k = 1;
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for n=1:N,
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if count == phase
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Z = [x(n) Z(1:2)];
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vc = Z(2) * (Z(3) - Z(1));
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_y(k) = x(n);
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k = k + 1;
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end
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if count == 0
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count = countReload-1;
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else
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count = count - 1;
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end
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_vc(n) = vc;
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end
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subplot(2,1 ,1)
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plot(1:N, _vc); grid;
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subplot(2,1 ,2)
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plot(1:k-1, _y, '-o'); grid;
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endfunction
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