Multi-sensor centralized fusion without measurement noise covariance by variational bayesian approximation

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Journal Article
IEEE Transactions on Aerospace and Electronic Systems, 2011, 47 (1), pp. 718 - 727
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The work presented here solves the multi-sensor centralized fusion problem in the linear Gaussian model without the measurement noise variance. We generalize the variational Bayesian approximation based adaptive Kalman filter (VB-AKF) from the single sensor filtering to a multi-sensor fusion system, and propose two new centralized fusion algorithms, i.e., VB-AKF-based augmented centralized fusion algorithm and VB-AKF-based sequential centralized fusion algorithm, to deal with the case that the measurement noise variance is unknown. The simulation results show the effectiveness of the proposed algorithms. © 2011 IEEE.
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