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annotate m-toolbox/classes/@miir/fromPzmodel.m @ 0:f0afece42f48

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Import.
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 23 Nov 2011 19:22:13 +0100
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % Construct an miir from a pzmodel
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % FUNCTION: fromPzmodel
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5 %
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6 % DESCRIPTION: Construct an miir from a pzmodel
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7 %
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8 % CALL: f = fromPzmodel(f, pli)
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9 %
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10 % PARAMETER: type: String with filter type description
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11 % pli: Parameter list object
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12 %
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13 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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14 function f = fromPzmodel(f, ipzm, pli)
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15
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16 VERSION = '$Id: fromPzmodel.m,v 1.16 2011/08/15 11:22:36 hewitson Exp $';
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17 ii = miir.getInfo('miir', 'From Pzmodel');
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18 % Set the method version string in the minfo object
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19 ii.setMversion([VERSION '-->' ii.mversion]);
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20
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21 % Add default values
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22 pl = applyDefaults(ii.plists, pli);
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23
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24 % Get parameters
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25 if isempty(ipzm)
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26 pzm = find(pl, 'pzmodel');
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27 else
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28 pzm = ipzm;
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29 pl.remove('pzmodel');
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30 end
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31
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32 if ~isa(pzm, 'pzmodel')
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33 error('### The ''From Pzmodel'' constructor requires an input pzmodel');
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34 end
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35
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36 fs = find(pl, 'fs');
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37
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38 if isempty(fs)
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39 % get max freq in pzmodel
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40 fs = 8*getupperFreq(pzm);
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41 warning([sprintf('!!! no sample rate specified. Designing for fs=%2.2f Hz.', fs)...
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42 sprintf('\nThe filter will be redesigned later when used.')]);
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43 end
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44 % make MIIR filter
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45 f = tomiir(pzm, fs);
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46
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47 if isempty(pl.find('name'))
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48 pl.pset('name', sprintf('iir(%s)', pzm.name));
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49 end
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50 if isempty(pl.find('description'))
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51 pl.pset('description', pzm.description);
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52 end
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53 if isempty(pl.find('iunits'))
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54 pl.pset('iunits', pzm.iunits);
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55 end
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56 if isempty(pl.find('ounits'))
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57 pl.pset('ounits', pzm.ounits);
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58 end
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59
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60 % Add history
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61 if isempty(ipzm)
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62 f.addHistory(ii, pl, [], []);
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63 else
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64 f.addHistory(ii, pl, [], ipzm.hist);
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65 end
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66
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67 % Set object properties
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68 f.setObjectProperties(pl);
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69
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70 end % End fromPzmodel