TY - JOUR AU - Hoang, S. AU - Nguyen, T. L. AU - Baraille, R. AU - Talagrand, O. TI - Approximation approach for nonlinear filtering problem with time dependent noises. I. Conditionally optimal filter in the minimum mean square sense JO - Kybernetika PY - 1997 SP - 409 EP - 425 VL - 33 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1997__33_4_a4/ LA - en ID - KYB_1997__33_4_a4 ER -