Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2008.2279.2285BahariM.H.KarsazA.Naghibi-SM.B.122008812In this study, an intelligent approach is applied to
reset the error covariance matrix of Kalman filter (KF) for high maneuver
target tracking. In practice, the standard KF is used for non-maneuvering
target tracking applications, which is optimal in the Minimum Mean Square
Error (MMSE) sense. Furthermore, it has fast convergence rate. However,
after some iterations the steps of the KF become very small. Because of
small steps in KF, the accuracy of target tracking may be seriously degraded
in presence of maneuver. This drawback can be overcome by resetting the
error covariance matrix of the KF. Since the information of earlier updates
will be partially lost by resetting the error covariance matrix, system
should reset it just when the target maneuvers and KF steps are not large
enough to track the target accurately. Moreover, resetting factor should
be proportional to the maneuver. Therefore, we present an intelligent
approach based on target maneuver detection to determine proper instants
for resetting the error covariance matrix. In addition, the new scheme
is enable to determine the optimal value of resetting factor in each iteration
effectively. Simulation results illustrate that the tracking ability of
the proposed scheme is more than conventional approaches, especially for
high maneuvering target tracking applications.]]>Bahari, M.H., A. Karsaz and H. Khaloozadeh,2007Cardillo, G.P., A.V. Mrstik and T. Plambeck,1999Duh, F.B. and C.T. Lin,2004Edde, B.,1993Goodwin G.C. and K.S. Sin,1984Gustafsson, F.,1996Haessig, D. and B. Friedland,1998Hsieh, C.S. and F.C. Chen,1999Hsieh, C.S. and F.C. Chen,2000Lee, B.J., J.B. Park, Y.H. Joo and S.H. Jin,2004Lee, B.J., J.B. Park, Y.H. Joo and S.H. Jin,2005Li, X.R. and Y. Bar-Shalom,1994Li, X.R. and V.P. Jilkov,2002Malladi, D.P. and J.L. Speyer,1999Mehrotra, K. and P.R. Mahapatra,1997Mookerjee, P. and F. Reifler,1999Qiu, H.Z., H.Y. Zhang and X.F. Sun,2005Robert, C.P. and G. Casella,1999Schweppe, F.C.,1973Wang, T.C. and P.K. Varshney,1993