For the multisensor systems with unknown noise variances, based on the solution of the matrix equations for the correlation function, the on-line estimators of the noise variance matrices are obtained, whose consistency is proved using the ergodicity of sampled correlation function. Further, two self-tuning weighted measurement fusion Kalman filters are presented for the multisensor systems with identical and different measurement matrices, respectively. Based on the stability of the dynamic error system, a new convergence analysis tool is presented for a self-tuning fuser, which is called the dynamic error system analysis (DESA) method. A new concept of convergence in a realization is presented, which is weaker than the convergence with probability one. It is rigorously proved that the proposed self-tuning Kalman fusers converge to the steady-state optimal Kalman fusers in a realization or with probability one, so that they have asymptotic global optimality. A simulation example for a target tracking system with 3 sensors shows their effectiveness.


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    Title :

    Self-Tuning Multisensor Weighted Measurement Fusion Kalman Filter


    Contributors:
    Yuan Gao, (author) / Wen-Jing Jia, (author) / Xiao-Jun Sun, (author) / Zi-Li Deng, (author)


    Publication date :

    2009-01-01


    Size :

    1060641 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English