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annotate m-toolbox/m/gui/specwin_viewer/ltpda_specwin_viewer_build_window.m @ 24:056f8e1e995e 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 function ltpda_specwin_viewer_build_window(varargin)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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2 % Function to build the window and display it.
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Daniele Nicolodi <nicolodi@science.unitn.it>
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3
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Daniele Nicolodi <nicolodi@science.unitn.it>
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4 plotType = varargin{end};
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5
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Daniele Nicolodi <nicolodi@science.unitn.it>
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6 mainfig = findobj('Tag', 'LTPDAspecwin_viewer');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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7 ax = getappdata(mainfig, 'axes');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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8 info = findobj('Tag', 'LTPDA_specwin_viewer_wininfo');
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9
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Daniele Nicolodi <nicolodi@science.unitn.it>
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10 % get window type
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Daniele Nicolodi <nicolodi@science.unitn.it>
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11 winTxt = findobj('Tag', 'LTPDA_specwin_viewer_WinType');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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12 wins = get(winTxt, 'String');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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13 win = wins{get(winTxt, 'Value')};
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14
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15 % Get window size
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Daniele Nicolodi <nicolodi@science.unitn.it>
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16 sizeTxt = findobj('Tag', 'LTPDA_specwin_viewer_WinSize');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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17 winlen = str2num(get(sizeTxt, 'String'));
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18
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Daniele Nicolodi <nicolodi@science.unitn.it>
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19 if strcmpi(win, 'Kaiser')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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20 % get psll
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Daniele Nicolodi <nicolodi@science.unitn.it>
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21 psllTxt = findobj('Tag', 'LTPDA_specwin_viewer_PSLL');
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22 psll = str2num(get(psllTxt, 'String'));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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23 w = specwin(win, winlen, psll);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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24 cstr = sprintf('specwin(''%s'', %d, %f)', win, winlen, psll);
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25 else
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Daniele Nicolodi <nicolodi@science.unitn.it>
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26 w = specwin(win, winlen);
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27 cstr = sprintf('specwin(''%s'', %d)', win, winlen);
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28 end
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29
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30 consTxt = findobj(mainfig, 'Tag', 'LTPDA_specwin_viewer_cstr');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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31 set(consTxt, 'String', cstr);
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32
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33
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34 titleStr = '';
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35 legendStr = '';
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36
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Daniele Nicolodi <nicolodi@science.unitn.it>
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37 switch plotType
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Daniele Nicolodi <nicolodi@science.unitn.it>
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38 case 'Time-domain'
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Daniele Nicolodi <nicolodi@science.unitn.it>
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39 hl = plot(ax, 1:length(w.win), w.win);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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40 xlabel('sample');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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41 ylabel('amplitude');
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42 case 'Freq-domain'
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43 % Freq response
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Daniele Nicolodi <nicolodi@science.unitn.it>
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44 f = linspace(-30,30,1000);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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45 r = zeros(size(f));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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46 N = length(w.win);
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47
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Daniele Nicolodi <nicolodi@science.unitn.it>
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48 % do dft
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Daniele Nicolodi <nicolodi@science.unitn.it>
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49 for j=1:length(f)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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50 k = [0:N-1].';
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Daniele Nicolodi <nicolodi@science.unitn.it>
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51 r(j) = (w.win * exp(-2*pi*1i*f(j)*k/N) )./w.ws;
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52 end
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53
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Daniele Nicolodi <nicolodi@science.unitn.it>
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54 % convert to dB
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Daniele Nicolodi <nicolodi@science.unitn.it>
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55 dbr = 20*log10(abs(r)); hl = plot(ax, f, dbr);
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56 xlabel('bin');
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57 ylabel('amplitude [dB]');
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58 end
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59
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60 col = [0.8 0.1 0.1];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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61 set(hl, 'Color', col);
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62 titleStr = [titleStr, utils.plottools.label(w.type), ', '];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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63 titleStr = titleStr(1:end-2);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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64 title(sprintf('Window: %s', titleStr));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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65 axis tight
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Daniele Nicolodi <nicolodi@science.unitn.it>
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66 grid on
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67
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68
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Daniele Nicolodi <nicolodi@science.unitn.it>
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69 % Info string
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Daniele Nicolodi <nicolodi@science.unitn.it>
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70 lstr = [sprintf('alpha = %g\n', w.alpha)...
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71 sprintf('psll = %g\n', w.psll)...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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72 sprintf('rov = %g\n', w.rov)...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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73 sprintf('nenbw = %g\n', w.nenbw)...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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74 sprintf('w3db = %g\n', w.w3db)...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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75 sprintf('flatness = %g\n', w.flatness)];
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76 legendStr = [legendStr cellstr(lstr)];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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77 set(info, 'String', legendStr);
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78
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Daniele Nicolodi <nicolodi@science.unitn.it>
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79 % Constructor
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80
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81
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82
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83
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84