Abstract
For non-cooperative maneuvering target tracking, H ∞ robust filtering is a usual and effective way of gaining fast and accurate target trajectory in real time. But unfortunately, the H ∞ filter (H∞F) is a conservative solution with infinite-horizon robustness. That means, the filtering optimality is sacrificed excessively so that the estimation precision is decreased unnecessarily. In order to balance the filtering conservativeness, we discuss an optimal-switched filtering mechanism and provide an optimal-switched H ∞ filter (OSH∞F) in this chapter. The discussed switching mechanism is built based on the typical structure that switches alternatively between optimal and H ∞ robust robust filtering, using an optimality-robustness cost function (ORCF) to evaluate the filtering performance and optimize the switching condition in real time. For a given ORCF, the estimation result of the OSH∞F is optimal in the meaning of the user-defined ratio of filtering optimality to robustness. Actually, the presented OSH∞F is a generalized version of H ∞ filtering, introducing an auxiliary parameter dimension to achieve conservativeness optimization. The estimation performance of the OSH∞F has been illustrated superior to other typical H ∞ filters by applying to a simulation example of maneuvering space target tracking.
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Acknowledgements
This work was supported in part by the Project Sponsored by SRF for ROCS, SEM, and Fundamental Research Funds for the Central Universities (ZYGX-2014J098).
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Jing, Z., Pan, H., Li, Y., Dong, P. (2018). Optimal-Switched H∞ Robust Tracking for Maneuvering Space Target. In: Non-Cooperative Target Tracking, Fusion and Control. Information Fusion and Data Science. Springer, Cham. https://doi.org/10.1007/978-3-319-90716-1_9
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DOI: https://doi.org/10.1007/978-3-319-90716-1_9
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