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−% IFFT overloads the ifft operator for Analysis objects.
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−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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−%
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−% DESCRIPTION: IFFT overloads the ifft operator for Analysis objects.
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−%
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−% CALL:        b = ifft(a, pl)
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−%
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−% <a href="matlab:utils.helper.displayMethodInfo('ao', 'ifft')">Parameters Description</a>
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−%
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−% VERSION:     $Id: ifft.m,v 1.31 2011/04/28 21:31:31 mauro Exp $
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−%
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−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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−
+
−function varargout = ifft(varargin)
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−
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−  % Check if this is a call for parameters
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−  if utils.helper.isinfocall(varargin{:})
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−    varargout{1} = getInfo(varargin{3});
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−    return
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−  end
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−
+
−  import utils.const.*
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−  utils.helper.msg(msg.PROC3, 'running %s/%s', mfilename('class'), mfilename);
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−  
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−  % Collect input variable names
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−  in_names = cell(size(varargin));
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−  for ii = 1:nargin,in_names{ii} = inputname(ii);end
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−
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−  % Collect all AOs and plists
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−  [as, ao_invars] = utils.helper.collect_objects(varargin(:), 'ao', in_names);
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−
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−  % Decide on a deep copy or a modify
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−  bs = copy(as, nargout);
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−
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−  % Apply defaults to plist
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−  pl = applyDefaults(getDefaultPlist, varargin{:});
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−
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−  % two-sided or one?
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−  type    = find(pl, 'type');
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−  
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−  % scale?
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−  scale = utils.prog.yes2true(find(pl, 'scale'));
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−
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−  % Check input analysis object
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−  for jj = 1:numel(bs)
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−    
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−    % call core method of the fft
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−    bs(jj).ifft_core(type);
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−    if scale
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−        bs(jj) = bs(jj)./ao(plist('vals',1/as(jj).fs,'yunits','Hz^-1'));
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−        bs(jj).simplifyYunits();
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−    end
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−    % Set name
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−    bs(jj).name = sprintf('ifft(%s)', ao_invars{jj});    
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−    % Add history
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−    bs(jj).addHistory(getInfo('None'), pl, ao_invars, bs(jj).hist);
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−    
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−  end
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−
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−  % Set output
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−  varargout = utils.helper.setoutputs(nargout, bs);
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−end
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−
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−%--------------------------------------------------------------------------
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−% Get Info Object
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−%--------------------------------------------------------------------------
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−function ii = getInfo(varargin)
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−  if nargin == 1 && strcmpi(varargin{1}, 'None')
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−    sets = {};
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−    pl   = [];
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−  else
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−    sets = {'Default'};
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−    pl   = getDefaultPlist();
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−  end
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−  % Build info object
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−  ii = minfo(mfilename, 'ao', 'ltpda', utils.const.categories.sigproc, '$Id: ifft.m,v 1.31 2011/04/28 21:31:31 mauro Exp $', sets, pl);
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−end
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−
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−%--------------------------------------------------------------------------
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−% Get Default Plist
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−%--------------------------------------------------------------------------
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−function plout = getDefaultPlist()
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−  persistent pl;  
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−  if ~exist('pl', 'var') || isempty(pl)
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−    pl = buildplist();
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−  end
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−  plout = pl;  
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−end
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−
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−function pl = buildplist()
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−  
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−  pl = plist();
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−  
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−  % Type
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−  p = param({'type', 'Assume the data is symmetric or nonsymmetric.'}, {1, {'symmetric', 'nonsymmetric'}, paramValue.SINGLE});
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−  pl.append(p);
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−  
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−  % Scale by sample rate?
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−  p = param({'scale',['set to ''true'' to scale FFT by sampling rate to match '...
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−      'amplitude in continuous domain. Only applicable to data with sampel rates.']},...
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−      paramValue.FALSE_TRUE);  
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−  pl.append(p);
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−    
+
−end
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−