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annotate m-toolbox/test/test_mfir_from_spec.m @ 45:a59cdb8aaf31 database-connection-manager

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Merge
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Tue, 06 Dec 2011 19:07:22 +0100
parents f0afece42f48
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 function test_mfir_from_spec()
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2
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3 % TEST_MFIR_FROM_SPEC test script for mfir constructor from AO/fsdata.
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4 %
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5 % M Hewitson 14-05-07
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6 %
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7 % $Id: test_mfir_from_spec.m,v 1.4 2008/09/19 14:03:50 ingo Exp $
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8 %
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9
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10 Ntaps = 512;
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11
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12 %% Make ao
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13
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14 % pole zero model
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15 pzm = pzmodel(1, [pz(0.1, 2) pz(0.5, 40)] , [pz(.03) pz(1.55, 25)]);
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16
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17 % Compute time-series
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18 Nsecs = 1e4; % Number of seconds desired
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19 swin = specwin('Kaiser', 10, 150); % Blending window
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20 x12 = fngen(pzm, plist('Win', swin, 'Nsecs', Nsecs)); % create time-series
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21
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22
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23 %% Make spectrum
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24
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25 pl = plist('Nfft', round(200*x12.data.fs));
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26 x12xx = pwelch(x12, pl);
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27
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28 %% Make filter
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29
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30 ffs = mfir(x12xx, plist('N', Ntaps, 'Win', specwin('Hamming', 10)));
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31
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32 rfs = resp(ffs, plist('f', [x12xx.data.x].'));
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33
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34 pl = plist('nsecs', Nsecs,'fs', x12.data.fs,'tsfcn', 'randn(size(t))');
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35 anoise = ao(pl);
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36
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37 tic
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38 anew = filter(4*anoise, ffs);
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39 toc
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40 pl = plist('Nfft', round(200*x12.data.fs));
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41 anewxx = pwelch(anew, pl);
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42
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43 %%
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44 iplot(x12xx, rfs, anewxx)
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45
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46 iplot(x12xx./anewxx)
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47 utils.plottools.yscale('lin')
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48
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49 %% Make inverse filter
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50 ffs = mfir(1./x12xx, plist('N', Ntaps, 'Win', specwin('Hamming', 10)));
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51
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52 rfs = resp(ffs, plist('f', x12xx.data.x));
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53 iplot(rfs)
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54
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55 x12wht = filter(x12, ffs);
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56 pl = plist('Nfft', round(200*x12.data.fs));
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57 x12whtxx = pwelch(x12wht, pl);
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58
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59 iplot(x12whtxx)
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60
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61 return
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62
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63 %% Write an m-file from AO
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64 pth = get_curr_m_file_path(mfilename);
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65 ao2m(x12l, [pth, 'test.m']);
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66
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67 % now run it
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68 clear all
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69 test
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70
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71 figure
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72
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73 plot(a1)
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74 figure
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75 plot(a1.hist)
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76
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77 % END
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78
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79
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80 % END