A full information fusion filtering method based on the predictive information of the system state

the predictive information of sub-systems states and measuremental imformation for the multi-sensor system is presented in this paper.In allusion to correlation problem between state estimation information of the sub-system and state predictive information of the system in the multi-sensor system

a period prolongation method is used to weaken this correlation

and then the system state estimation is obtained by the direct fusion of the information.The simulation results of satellite attitude determination system based on the combination of GPS and gyroscope show the effectiveness of the full information fusion filtering based on the period prolonga-tion.