affecte pas instantanément les capteurs a cause des effets de retard et d'atténuation de la diffusion et aussi par l'effet du transport, comme dans l'équation (1.13) Dans le but de minimiser cet effet qui tend à rendre instable la solution si le pas de temps ?t diminue, il est possible d'utiliser la méthode de régularisation dite "Pas de Temps Futurs, 1996. ,
Ainsi, l'information supplémentaire agit en tant que procédé de régularisation qui stabilise la solution. Si nf est le nombre de FTS à utiliser, alors pour 1 Une, 28) est écrite pour U (t k+1+f ) et Y (t k+1+f ) ,
) (i.e. utilisation pour le temps courant t k+1 ), il est possible de réarranger les nf + 1 équations (1.28) pour obtenir SU ,
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