Track Estimation Method based on State Matrix Weighted Fusion Filter

According to the characteristics of target motion and composite guidance, this paper designs the global state feedback model and proposes a track estimation method of the moving targets on the sea by introducing the state matrix weighted fusion method. The method can obtains the optimal weight of the state fusion, and overcomes the problem of the large amount calculation caused by the high dimensional matrix of the centralized measurements filtering. Simulation results of active and passive radar composite guidance show that this method can effectively obtain the high precision estimation of track without increasing the dimension of the observation matrix.