1 #-*-coding:iso-8859-1-*-
3 # Copyright (C) 2008-2011 EDF R&D
5 # This library is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU Lesser General Public
7 # License as published by the Free Software Foundation; either
8 # version 2.1 of the License.
10 # This library is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # Lesser General Public License for more details.
15 # You should have received a copy of the GNU Lesser General Public
16 # License along with this library; if not, write to the Free Software
17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 from daCore import BasicObjects, PlatformInfo
24 m = PlatformInfo.SystemUsage()
28 # ==============================================================================
29 class ElementaryAlgorithm(BasicObjects.Algorithm):
31 BasicObjects.Algorithm.__init__(self)
33 logging.debug("%s Initialisation"%self._name)
35 def run(self, Xb=None, Y=None, H=None, M=None, R=None, B=None, Q=None, Parameters=None):
37 Calcul de l'estimateur BLUE (ou Kalman simple, ou Interpolation Optimale)
39 logging.debug("%s Lancement"%self._name)
40 logging.debug("%s Taille mémoire utilisée de %.1f Mo"%(self._name, m.getUsedMemory("Mo")))
42 Hm = H["Direct"].asMatrix()
43 Ht = H["Adjoint"].asMatrix()
45 # Utilisation éventuelle d'un vecteur H(Xb) précalculé
46 # ----------------------------------------------------
47 if H["AppliedToX"] is not None and H["AppliedToX"].has_key("HXb"):
48 logging.debug("%s Utilisation de HXb"%self._name)
49 HXb = H["AppliedToX"]["HXb"]
51 logging.debug("%s Calcul de Hm * Xb"%self._name)
53 HXb = numpy.asmatrix(HXb).flatten().T
55 # Précalcul des inversions de B et R
56 # ----------------------------------
59 elif Parameters["B_scalar"] is not None:
60 BI = 1.0 / Parameters["B_scalar"]
61 B = Parameters["B_scalar"]
64 elif Parameters["R_scalar"] is not None:
65 RI = 1.0 / Parameters["R_scalar"]
66 R = Parameters["R_scalar"]
68 # Calcul de l'innovation
69 # ----------------------
70 if Y.size != HXb.size:
71 raise ValueError("The size %i of observations Y and %i of observed calculation H(X) are different, they have to be identical."%(Y.size,HXb.size))
72 if max(Y.shape) != max(HXb.shape):
73 raise ValueError("The shapes %s of observations Y and %s of observed calculation H(X) are different, they have to be identical."%(Y.shape,HXb.shape))
75 logging.debug("%s Innovation d = %s"%(self._name, d))
77 # Calcul de la matrice de gain dans l'espace le plus petit et de l'analyse
78 # ------------------------------------------------------------------------
80 logging.debug("%s Calcul de K dans l'espace des observations"%self._name)
81 K = B * Ht * (Hm * B * Ht + R).I
83 logging.debug("%s Calcul de K dans l'espace d'ébauche"%self._name)
84 K = (Ht * RI * Hm + BI).I * Ht * RI
86 logging.debug("%s Analyse Xa = %s"%(self._name, Xa))
88 # Calcul de la fonction coût
89 # --------------------------
90 Jb = 0.5 * (Xa - Xb).T * BI * (Xa - Xb)
91 Jo = 0.5 * d.T * RI * d
92 J = float( Jb ) + float( Jo )
93 logging.debug("%s CostFunction Jb = %s"%(self._name, Jb))
94 logging.debug("%s CostFunction Jo = %s"%(self._name, Jo))
95 logging.debug("%s CostFunction J = %s"%(self._name, J))
97 self.StoredVariables["Analysis"].store( Xa.A1 )
98 self.StoredVariables["Innovation"].store( d.A1 )
99 self.StoredVariables["CostFunctionJb"].store( Jb )
100 self.StoredVariables["CostFunctionJo"].store( Jo )
101 self.StoredVariables["CostFunctionJ" ].store( J )
103 logging.debug("%s Taille mémoire utilisée de %.1f Mo"%(self._name, m.getUsedMemory("MB")))
104 logging.debug("%s Terminé"%self._name)
108 # ==============================================================================
109 if __name__ == "__main__":
110 print '\n AUTODIAGNOSTIC \n'