Abstract:For the multisensor systems with uncorrelcted noises,and with unkonw noise varaies.substituting the information fusion noise variance setimators based on the correlct method into the centralized fusion optimal information filter,a self-turning centralized fusion information filter is presenced compared with the self-turning centralized fusion Kalman filter based on the Riccati equation,it can be avoid to compute zhe inverse matrix with high dimension,so that the calculation hurden can be reduced significantly.Apply of the dynamic error-system analtsis(DESA) metod,it is proved that it converges to zhe centralied fusion optimal information filter,so that it has asymptotical globled optimality.A simultation example for target traced system with 3_sensor shows its effectiveness