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annotate m-toolbox/classes/@specwin/get_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
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % GET_WINDOW returns the required window function as a structure.
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % DESCRIPTION: GET_WINDOW returns the required window function as a structure.
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5 %
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6 % CALL: objs = get_window(objs, name, N); % For standard windows
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7 % objs = get_window(objs, name, N, PSLL); % For Kaiser windows
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8 % objs = get_window(objs, name, N, levelCoeff); % For levelled-Hann windows
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9 %
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10 % VERSION: $Id: get_window.m,v 1.8 2011/05/24 16:05:05 mauro Exp $
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11 %
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12 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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13
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14 function w = get_window(varargin)
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15
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16 PSLL = [];
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17
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18 % Check inputs
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19 n_args = nargin;
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20 if n_args > 4 || n_args < 3
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21 error('### Incorrect inputs.');
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22 end
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23
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24 % Get inputs
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25 w = varargin{1};
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26 name = varargin{2};
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27 N = varargin{3};
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28 if n_args == 4
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29 PSLL = varargin{4};
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30 end
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31
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32 % Get window
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33 if isempty(PSLL)
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34
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35 % Check for 'Kaiser' window
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36 if strcmpi(name, 'Kaiser')
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37 error('### The ''Kaiser'' window needed the length of the window and PSLL as an input');
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38 end
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39
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40 % Check for 'levelledHanning' window
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41 if strcmpi(name, 'levelledHanning')
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42 error('### The ''levelledHanning'' window needed the levelling coefficient as an input');
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43 end
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44
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45 % get standard window
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46
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47 win_name = sprintf('win_%s', lower(name));
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48 try
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49 w = feval(win_name, w, 'define', N);
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50 catch ME
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51 if strcmp(ME.identifier, 'MATLAB:UndefinedFunction')
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52 error('\n### Your window [%s] is not a supported window.\n### Please type >> specwin.getTypes to see all supported windows.', name);
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53 else
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54 rethrow(ME);
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55 end
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56 end
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57
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58 else
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59
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60 if strcmpi(name, 'Kaiser')
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61 % Deal with Kaiser
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62 win_name = sprintf('win_%s', lower(name));
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63 w = feval(win_name, w, 'define', N, PSLL);
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64 elseif strcmpi(name, 'levelledHanning')
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65 % Deal with levelledHann window
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66 win_name = sprintf('win_%s', lower(name));
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67 levelCoef = PSLL;
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68 w = feval(win_name, w, 'define', N, levelCoef);
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69 else
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70 error('\n### Your window [%s] is not a supported 2-inputs window.\n### Please type >> specwin.getTypes to see all supported windows.', name);
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71 end
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72
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73 end
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74 end
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