+
−% REDESIGN redesign the input filter to work for the given sample rate.
+
−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−%
+
−% DESCRIPTION: REDESIGN redesign the input filter to work for the given sample
+
−%              rate.
+
−%
+
−% CALL:        filt = redesign(filt, fs)
+
−%              filt = redesign(filt, plist-object)
+
−%
+
−% INPUT:       filt - input (mfir) filter
+
−%              fs   - new sample rate
+
−%
+
−% OUTPUT:      filt - new output filter
+
−%
+
−% <a href="matlab:utils.helper.displayMethodInfo('mfir', 'redesign')">Parameters Description</a>
+
−%
+
−% VERSION:     $Id: redesign.m,v 1.21 2011/04/08 08:56:20 hewitson Exp $
+
−%
+
−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−
+
−function varargout = redesign(varargin)
+
−  
+
−  %%% Check if this is a call for parameters
+
−  if utils.helper.isinfocall(varargin{:})
+
−    varargout{1} = getInfo(varargin{3});
+
−    return
+
−  end
+
−  
+
−  import utils.const.*
+
−  utils.helper.msg(msg.OMNAME, 'running %s/%s', mfilename('class'), mfilename);
+
−  
+
−  %%% check numer of outputs
+
−  if nargout == 0
+
−    error('### cat cannot be used as a modifier. Please give an output variable.');
+
−  end
+
−  
+
−  % Collect input variable names
+
−  in_names = cell(size(varargin));
+
−  for ii = 1:nargin,in_names{ii} = inputname(ii);end
+
−  
+
−  [filt, filt_invars, rest] = utils.helper.collect_objects(varargin(:), 'mfir', in_names);
+
−  pls = utils.helper.collect_objects(rest(:), 'plist');
+
−  
+
−  %%% Combine input plists
+
−  pls = combine(pls, getDefaultPlist());
+
−  
+
−  %%% Get 'fs' from the second input or from the input plist
+
−  if numel(rest) == 1 && isnumeric(rest{1})
+
−    fs = rest{1};
+
−    pls.pset('fs', fs);
+
−  elseif pls.nparams == 1 && pls.isparam('fs')
+
−    fs = pls.find('fs');
+
−  else
+
−    error('### Please specify the new sample rate.');
+
−  end
+
−  
+
−  %%% Redesing all filters
+
−  for kk = 1:numel(filt)
+
−    utils.helper.msg(msg.OPROC1, 're-designing filter for fs=%2.2f Hz...', fs);
+
−    
+
−    % Get the plistUsed from the constructor block (not from a copy constructor).
+
−    h  = filt(kk).hist;
+
−    lc = 1;
+
−    while lc<100
+
−      if ~strcmp(h.methodInfo.mcategory, utils.const.categories.constructor)
+
−        % Not a constructor block
+
−      else
+
−        % Copy constructor or a 'normal' constructor
+
−        if ~isempty(h.plistUsed) && (h.plistUsed.nparams > 0)
+
−          % Leave the loop if 'plistUsed' is filled -> Not a copy constructor
+
−          break;
+
−        end
+
−      end
+
−      if ~isempty(h.inhists)
+
−        h = h.inhists(1);
+
−      end
+
−      lc = lc + 1;
+
−    end
+
−    % Throw an error if no constructor block is found.
+
−    if ~strcmp(h.methodInfo.mcategory, utils.const.categories.constructor)
+
−      error('### Found no constructor block to get the plistUsed.');
+
−    end
+
−    
+
−    fpl  = h.plistUsed;
+
−    type = find(fpl, 'type');
+
−    pzm  = find(fpl, 'pzmodel');
+
−    
+
−    % retain the following properties of the miir object and set them at the end
+
−    % of the method.
+
−    name   = filt(kk).name;
+
−    iunits = filt(kk).iunits;
+
−    ounits = filt(kk).ounits;
+
−    hist   = filt(kk).hist;
+
−    
+
−    if  strcmpi(type, 'highpass') ||...
+
−        strcmpi(type, 'lowpass')  ||...
+
−        strcmpi(type, 'bandpass') ||...
+
−        strcmpi(type, 'bandreject')
+
−      %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−      %%%%%%%%%%                 From Standard types                 %%%%%%%%%%
+
−      
+
−      utils.helper.msg(msg.OPROC2, 're-designing standard filter.');
+
−      try
+
−        fpl = pset(fpl, 'fs', fs);
+
−        utils.helper.msg(msg.OPROC2, 'setting new fs.');
+
−      catch
+
−        fpl = append(fpl, 'fs', fs);
+
−        utils.helper.msg(msg.OPROC2, 'appending parameter fs.');
+
−      end
+
−      filt(kk) = mfir(fpl);
+
−      
+
−    elseif ~isempty(pzm)
+
−      %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−      %%%%%%%%%%                 From pole/zero model                 %%%%%%%%%
+
−      
+
−      % REMARK: Only the history of ltpda_uoh objects are stroed in a plist and
+
−      %         not the object itself.
+
−      %         We have to rebuild the object to get the object back.
+
−      if isa(pzm, 'history')
+
−        pzm = rebuild(pzm);
+
−      end
+
−      utils.helper.msg(msg.OPROC2, 're-designing pzmodel filter.');
+
−      filt(kk) = mfir(plist([param('pzmodel', pzm) param('fs', fs)]));
+
−      
+
−    else
+
−      warning('!!! un-recognised input filter type. Can''t redesign.');
+
−      continue;
+
−    end
+
−    
+
−    % Set the retained properties
+
−    filt(kk).name   = name;
+
−    filt(kk).iunits = iunits;
+
−    filt(kk).ounits = ounits;
+
−    
+
−    % Add history
+
−    filt(kk).addHistory(getInfo('None'), pls, filt_invars(kk), hist);
+
−    
+
−  end
+
−  
+
−  %%% Set output.
+
−  varargout{1} = filt;
+
−end
+
−
+
−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−%                               Local Functions                               %
+
−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−
+
−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−%
+
−% FUNCTION:    getInfo
+
−%
+
−% DESCRIPTION: Get Info Object
+
−%
+
−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−
+
−function ii = getInfo(varargin)
+
−  if nargin == 1 && strcmpi(varargin{1}, 'None')
+
−    sets = {};
+
−    pl   = [];
+
−  else
+
−    sets = {'Default'};
+
−    pl   = getDefaultPlist;
+
−  end
+
−  % Build info object
+
−  ii = minfo(mfilename, 'mfir', 'ltpda', utils.const.categories.helper, '$Id: redesign.m,v 1.21 2011/04/08 08:56:20 hewitson Exp $', sets, pl);
+
−  ii.setModifier(false);
+
−end
+
−
+
−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−%
+
−% FUNCTION:    getDefaultPlist
+
−%
+
−% DESCRIPTION: Get Default Plist
+
−%
+
−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
−
+
−function plout = getDefaultPlist()
+
−  persistent pl;
+
−  if exist('pl', 'var')==0 || isempty(pl)
+
−    pl = buildplist();
+
−  end
+
−  plout = pl;
+
−end
+
−
+
−function pl = buildplist()
+
−  pl = plist.EMPTY_PLIST;
+
−end
+
−