State Fusion of Decentralized Optimal Unbiased FIR Filters
The paper presents a decentralized fusion strategy based on the optimal unbiased finite impulse response (OUFIR) filter for discrete systems with correlated process and measurement noise. We extend OUFIR filter to apply in the model with control inputs. Taking it as local filters, cross covariance b...
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
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| Series: | Journal of Electrical and Computer Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/1505137 |
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| _version_ | 1850171709552852992 |
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| author | Xuefeng Fan Fei Liu |
| author_facet | Xuefeng Fan Fei Liu |
| author_sort | Xuefeng Fan |
| collection | DOAJ |
| description | The paper presents a decentralized fusion strategy based on the optimal unbiased finite impulse response (OUFIR) filter for discrete systems with correlated process and measurement noise. We extend OUFIR filter to apply in the model with control inputs. Taking it as local filters, cross covariance between any two is calculated; then it is expressed to the fast iterative form. Finally based on cross covariance, optimal weights are utilized to fuse local estimates and the overall outcome is obtained. The numerical examples show that the proposed filter exhibits better robustness against temporary modeling uncertainties than the fusion Kalman filter used commonly. |
| format | Article |
| id | doaj-art-abb3abe3c3474cd5acf059ece9a83e41 |
| institution | OA Journals |
| issn | 2090-0147 2090-0155 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Electrical and Computer Engineering |
| spelling | doaj-art-abb3abe3c3474cd5acf059ece9a83e412025-08-20T02:20:13ZengWileyJournal of Electrical and Computer Engineering2090-01472090-01552018-01-01201810.1155/2018/15051371505137State Fusion of Decentralized Optimal Unbiased FIR FiltersXuefeng Fan0Fei Liu1Key Laboratory of Advanced Process Control for Light Industry, Jiangnan University, Wuxi 214122, ChinaKey Laboratory of Advanced Process Control for Light Industry, Jiangnan University, Wuxi 214122, ChinaThe paper presents a decentralized fusion strategy based on the optimal unbiased finite impulse response (OUFIR) filter for discrete systems with correlated process and measurement noise. We extend OUFIR filter to apply in the model with control inputs. Taking it as local filters, cross covariance between any two is calculated; then it is expressed to the fast iterative form. Finally based on cross covariance, optimal weights are utilized to fuse local estimates and the overall outcome is obtained. The numerical examples show that the proposed filter exhibits better robustness against temporary modeling uncertainties than the fusion Kalman filter used commonly.http://dx.doi.org/10.1155/2018/1505137 |
| spellingShingle | Xuefeng Fan Fei Liu State Fusion of Decentralized Optimal Unbiased FIR Filters Journal of Electrical and Computer Engineering |
| title | State Fusion of Decentralized Optimal Unbiased FIR Filters |
| title_full | State Fusion of Decentralized Optimal Unbiased FIR Filters |
| title_fullStr | State Fusion of Decentralized Optimal Unbiased FIR Filters |
| title_full_unstemmed | State Fusion of Decentralized Optimal Unbiased FIR Filters |
| title_short | State Fusion of Decentralized Optimal Unbiased FIR Filters |
| title_sort | state fusion of decentralized optimal unbiased fir filters |
| url | http://dx.doi.org/10.1155/2018/1505137 |
| work_keys_str_mv | AT xuefengfan statefusionofdecentralizedoptimalunbiasedfirfilters AT feiliu statefusionofdecentralizedoptimalunbiasedfirfilters |