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annotate m-toolbox/test/test_ao_cpsd.m @ 22:b11e88004fca database-connection-manager

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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
parents f0afece42f48
children
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % Test ao/cpsd functionality.
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Daniele Nicolodi <nicolodi@science.unitn.it>
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2 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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3 % M Hewitson 08-05-08
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Daniele Nicolodi <nicolodi@science.unitn.it>
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4 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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5 % $Id: test_ao_cpsd.m,v 1.6 2009/03/26 09:04:05 miquel Exp $
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Daniele Nicolodi <nicolodi@science.unitn.it>
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6 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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7 function test_ao_cpsd()
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Daniele Nicolodi <nicolodi@science.unitn.it>
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8
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Daniele Nicolodi <nicolodi@science.unitn.it>
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9 % Make test AOs
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Daniele Nicolodi <nicolodi@science.unitn.it>
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10
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Daniele Nicolodi <nicolodi@science.unitn.it>
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11 nsecs = 10;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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12 fs = 1000;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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13
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Daniele Nicolodi <nicolodi@science.unitn.it>
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14 pl = plist();
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Daniele Nicolodi <nicolodi@science.unitn.it>
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15 pl.append('nsecs', nsecs);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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16 pl.append('fs', fs);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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17 pl.append('tsfcn', 'sin(2*pi*7.433*t) + randn(size(t))');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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18
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Daniele Nicolodi <nicolodi@science.unitn.it>
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19 a1 = ao(pl);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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20 a2 = ao(pl);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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21
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Daniele Nicolodi <nicolodi@science.unitn.it>
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22 % Filter one time-series
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Daniele Nicolodi <nicolodi@science.unitn.it>
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23
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Daniele Nicolodi <nicolodi@science.unitn.it>
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24 % Make a filter
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Daniele Nicolodi <nicolodi@science.unitn.it>
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25 pl = plist('type', 'bandpass', 'fs', 1000, 'order', 3, 'fc', [50 250]);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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26 f2 = miir(pl);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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27
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Daniele Nicolodi <nicolodi@science.unitn.it>
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28 % filter the input data
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Daniele Nicolodi <nicolodi@science.unitn.it>
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29 [a3, f2] = filter(a1,plist('filter', f2));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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30
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Daniele Nicolodi <nicolodi@science.unitn.it>
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31 % make some cross-power
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Daniele Nicolodi <nicolodi@science.unitn.it>
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32 a4 = 10.*a3+a2;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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33
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Daniele Nicolodi <nicolodi@science.unitn.it>
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34 % Make CPSD from a6 to a7
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Daniele Nicolodi <nicolodi@science.unitn.it>
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35 Nfft = 1000;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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36 win = specwin('Hanning', Nfft);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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37 pl = plist('Nfft', Nfft, 'Win', win, 'order', 2);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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38 a8 = cpsd(a1, a4, pl);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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39
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Daniele Nicolodi <nicolodi@science.unitn.it>
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40 % Use matlab
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Daniele Nicolodi <nicolodi@science.unitn.it>
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41 [pxy, f] = cpsd(a1.data.y, a4.data.y, win.win, Nfft/2, Nfft, a1.data.fs);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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42 a9 = ao(fsdata(f.', pxy.'));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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43
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Daniele Nicolodi <nicolodi@science.unitn.it>
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44 % Plot
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Daniele Nicolodi <nicolodi@science.unitn.it>
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45 iplot(a8, a9, plist('LineStyles', {'', '--'}))
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Daniele Nicolodi <nicolodi@science.unitn.it>
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46 iplot(a8 ./ a9)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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47
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Daniele Nicolodi <nicolodi@science.unitn.it>
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48 % Test cpsd(a1,a1) = psd(a1)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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49 a10 = cpsd(a1, a1, pl);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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50 a11 = psd(a1, pl);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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51
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Daniele Nicolodi <nicolodi@science.unitn.it>
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52 iplot(a10,a11)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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53
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Daniele Nicolodi <nicolodi@science.unitn.it>
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54 end