Research on Adaptive Filtering Technique in Integrated Navigation System

There are many practical problems to solve when applying normal KF(Kalman filter) in integrated navigation system, so people are paying more attention to the research of AKF(adaptive Kalman filtering)technique. In view of the present research situation of AKF technique, this paper discusses an AKF algorithm for on line estimation of the statistical feature of measurement noise, which has many advantages such as simple structure, realtime and practicable in engineering. The result of computer simulation shows that the algorithm is useful,effective and adaptive with its high effectiveness and accuracy.