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git-svn-id: http://moon:8086/svn/matlab/trunk@129 801c6759-fa7c-4059-a304-17956f83a07c
2020-08-09 11:07:18 +00:00
parent 1f5b0b0570
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+## Copyright (C) 2020 Jens
+## 
+## 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
+## <https://www.gnu.org/licenses/>.
+
+## -*- texinfo -*- 
+## @deftypefn {} {@var{retval} =} mc_pd_eval (@var{input1}, @var{input2})
+##
+## @seealso{}
+## @end deftypefn
+
+## Author: Jens <jens@orion>
+## Created: 2020-08-07
+
+function retval = mc_pd_eval3 (perr, freq, slave_oversample)
+
+Nc = 10;
+Nspc = 96;
+
+ka = 0.9;
+klead = 0.4;
+klag = 0.01/slave_oversample;
+lag = 0;
+
+# Create master
+xm = [];
+for n=1:Nspc,
+	for m=1:slave_oversample,
+		xm = [xm n];
+	endfor
+endfor
+x = repmat(xm, 1, Nc);
+
+N = Nc*Nspc*slave_oversample;
+assert (N == length(x));
+
+# Create slave
+pc = Nspc/2 + perr;
+dfreq = freq/slave_oversample; 
+dpc = dfreq;
+
+sample_count = slave_oversample;
+for n=1:N,
+	perr = phase_det(pc, x(n), Nspc);
+	sample_count = sample_count - 1;
+	if sample_count == 0,
+		sample_count = slave_oversample;
+	else
+		perr = 0;
+	end
+	dpc = dfreq - (klag*lag + klead*perr);
+	pc = mod(pc + dpc, Nspc);
+	lag = lag + perr;
+	_lo(n) = mod(pc - Nspc/2 - 1/slave_oversample, Nspc);
+	_perr(n) = perr;
+	_dpc(n) = dpc;
+end
+
+function perr = phase_det(lo, x, Nspc)
+	perr = mod((lo - x), Nspc) - Nspc/2;
+endfunction
+
+close all;
+subplot(3, 1, 1)
+plot(1:N, _lo, 1:N, x); legend('Lo', 'x'); grid
+
+subplot(3, 1, 2)
+plot(1:N, _dpc); legend('f'); grid
+
+subplot(3, 1, 3)
+plot(1:N, _perr); legend('p'); grid
+
+endfunction