Mercurial > hg > ltpda

annotate m-toolbox/classes/@ssm/ssmFromMiir.m @ 7:1e91f84a4be8 database-connection-manager

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Make ltpda_up.retrieve work with java.sql.Connection objects
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
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1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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2 %
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3 % FUNCTION: ssmFromMiir
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4 %
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5 % DESCRIPTION: Construct a statespace model from a miir
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6 %
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7 % CALL: see ssm, this function is private
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8 %
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9 % TODO: check must be made there is no pole zero cancelation
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10 %
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11 % VERSION : '$Id: ssmFromMiir.m,v 1.26 2011/03/23 20:05:37 adrien Exp $';
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12 %
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13 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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14
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15 function varargout = ssmFromMiir(varargin)
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16
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17
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18 VERSION = '$Id: ssmFromMiir.m,v 1.26 2011/03/23 20:05:37 adrien Exp $';
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19 utils.helper.msg(utils.const.msg.MNAME, ['running ', mfilename]);
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20 % get info
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21 ii = ssm.getInfo('ssm', 'from miir');
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22 % Set the method version string in the minfo object
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23 ii.setMversion([VERSION '-->' ii.mversion]);
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24
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25 if nargin ~=2
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26 error('ssmFromss need 2 inputs : (obj, plist) ')
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27 elseif isa(varargin{1}, 'miir') && isa(varargin{2}, 'plist')
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28 pl = combine(varargin{2}, ii.plists);
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29 miirsin = varargin{1};
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30 else
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31 error('### Please input (<object>,<plist>)');
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32 end
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33
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34 ssmout = ssm.initObjectWithSize(size(miirsin,1),size(miirsin,2));
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35 for i =1:numel(miirsin)
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36 num = miirsin(i).a;
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37 den = miirsin(i).b;
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38 num = num/den(1);
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39 den = den/den(1);
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40 Nss = size(den,2)-1;
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41 if length(num)<Nss+1
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42 num = [zeros(1,Nss+1-length(num)) num];
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43 end
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44 [q,r] = deconv(num,den);%polynmial division for den = conv(num,q)+r .
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45 if ~length(q)==1
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46 error('system may be non caussal');
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47 end
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48
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49 ssmout(i).dmats = {q};
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50 ssmout(i).amats = {[zeros(Nss-1,1) eye(Nss-1); fliplr(-den(2:(Nss+1)))]};
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51 ssmout(i).bmats = {zeros(Nss,1)};
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52 if Nss>0
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53 ssmout(i).bmats{1}(Nss) = 1;
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54 end
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55 ssmout(i).cmats = {fliplr(r(2:(Nss+1)))};
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56
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57 ssmout(i).name = miirsin(i).name;
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58 ssmout(i).timestep = 1/(miirsin(i).fs);
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59
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60 inputstr = 'input';
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61 outputstr = 'output';
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62 ssstr = 'state';
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63
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64 ssmout(i).inputs = ssmblock.makeBlocksWithData({inputstr},[],{{inputstr}}, {miirsin(i).iunits},[] );
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65 ssmout(i).outputs = ssmblock.makeBlocksWithData({outputstr},[],{{outputstr}}, {miirsin(i).ounits},[] );
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66 ssmout(i).states = ssmblock.makeBlocksWithSize(Nss, ssstr);
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67
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68 ssmout(i).addHistory(ii, pl, {''}, miirsin(i).hist);
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69
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70 if ~strcmp(pl.find('name'),'None')
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71 ssmout(i).name = pl.find('name');
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72 end
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73 if ~strcmp(pl.find('description'),'')
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74 ssmout(i).description = pl.find('description');
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75 end
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76
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77 end
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78
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79 varargout = {ssmout};
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80 end
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81
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