Parallel Covariance Intersection Fusion Optimal Kalman Filter

Peng Zhang; Wen Juan Qi; Zi Li Deng

doi:10.4028/www.scientific.net/AMM.475-476.436

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 475-476Parallel Covariance Intersection Fusion Optimal...

Parallel Covariance Intersection Fusion Optimal Kalman Filter

Abstract:

For multisensor network systems with unknown cross-covariances, a novel multi-level parallel covariance intersection (PCI) fusion Kalman filter is presented in this paper, which is realized by the multi-level parallel two-sensor covariance intersection (CI) fusers, so it only requires to solve the optimization problems of several one-dimensional nonlinear cost functions in parallel with loss computation burden. It can significantly reduce the computation time and increase data processing rate when the number of sensors is very large. It is proved that the PCI fuser is consistent, and its accuracy is higher than that of each local filter and is lower than that of the optimal Kalman fuser weighted by matrices. The geometric interpretation of accuracy relations based on the covariance ellipses is given. A simulation example for tracking systems verifies the accuracy relations.

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Periodical:

Applied Mechanics and Materials (Volumes 475-476)

Pages:

436-441

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.475-476.436

Citation:

Cite this paper

Online since:

December 2013

Authors:

Peng Zhang, Wen Juan Qi, Zi Li Deng

Keywords:

Distributed Fusion Estimation, Kalman Filter (KF), Multisensor Information Fusion, Parallel Processing

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