view m-toolbox/classes/@ao/upsample.m @ 52:daf4eab1a51e
database-connection-manager tip
Fix. Default password should be [] not an empty string
author
Daniele Nicolodi <nicolodi@science.unitn.it>
date
Wed, 07 Dec 2011 17:29:47 +0100 (2011-12-07)
parents
f0afece42f48
children
line source
+ − % UPSAMPLE overloads upsample function for AOs.
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − %
+ − % DESCRIPTION: UPSAMPLE AOs containing time-series data. All other AOs with
+ − % no time-series data are skipped but appear in the output.
+ − %
+ − % A signal at sample rate fs is upsampled by inserting N-1 zeros between the
+ − % input samples.
+ − %
+ − % CALL: b = upsample(a, pl)
+ − %
+ − % <a href="matlab:utils.helper.displayMethodInfo('ao', 'upsample')">Parameters Description</a>
+ − %
+ − % VERSION: $Id: upsample.m,v 1.29 2011/07/14 05:33:18 mauro Exp $
+ − %
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ −
+ − function varargout = upsample(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.PROC3, 'running %s/%s', mfilename('class'), mfilename);
+ −
+ − % Collect input variable names
+ − in_names = cell(size(varargin));
+ − for ii = 1:nargin,in_names{ii} = inputname(ii);end
+ −
+ − % Collect all AOs and plists
+ − [as, ao_invars] = utils.helper.collect_objects(varargin(:), 'ao', in_names);
+ − pl = utils.helper.collect_objects(varargin(:), 'plist', in_names);
+ −
+ − % Decide on a deep copy or a modify
+ − bs = copy(as, nargout);
+ −
+ − % combine plists
+ − pl = parse(pl, getDefaultPlist());
+ −
+ −
+ − % Get output sample rate
+ − Nup = find(pl, 'N');
+ − if isempty(Nup)
+ − error('### Please give a plist with a parameter ''N''.');
+ − end
+ − % Get initial phase
+ − phase = find(pl, 'phase');
+ − if isempty(phase)
+ − phase = 0;
+ − end
+ −
+ − % Loop over AOs
+ − for jj = 1:numel(bs)
+ − if ~isa(bs(jj).data, 'tsdata')
+ − warning('!!! Upsample only works on tsdata objects. Skipping AO %s', ao_invars{jj});
+ − else
+ − % upsample y
+ − bs(jj).data.setY(upsample(bs(jj).data.y, floor(Nup), phase));
+ − % Correct fs
+ − bs(jj).data.setFs(floor(Nup)*bs(jj).data.fs);
+ − % Set name
+ − bs(jj).name = sprintf('upsample(%s)', ao_invars{jj});
+ − % Add history
+ − bs(jj).addHistory(getInfo('None'), pl, ao_invars(jj), bs(jj).hist);
+ − % clear errors
+ − bs(jj).clearErrors;
+ − end
+ − end
+ −
+ − % Set output
+ − varargout = utils.helper.setoutputs(nargout, bs);
+ − end
+ −
+ − %--------------------------------------------------------------------------
+ − % 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, 'ao', 'ltpda', utils.const.categories.sigproc, '$Id: upsample.m,v 1.29 2011/07/14 05:33:18 mauro Exp $', sets, pl);
+ − end
+ −
+ − %--------------------------------------------------------------------------
+ − % Get Default Plist
+ − %--------------------------------------------------------------------------
+ − function plout = getDefaultPlist()
+ − persistent pl;
+ − if ~exist('pl', 'var') || isempty(pl)
+ − pl = buildplist();
+ − end
+ − plout = pl;
+ − end
+ −
+ − function pl = buildplist()
+ −
+ − pl = plist();
+ −
+ − % N
+ − p = param({'N', 'The upsample factor.'}, paramValue.DOUBLE_VALUE(1));
+ − pl.append(p);
+ −
+ − % phase
+ − p = param({'phase', 'The initial phase [0, N-1].'}, paramValue.DOUBLE_VALUE(0));
+ − pl.append(p);
+ −
+ − end