Distributed multi‐station target tracking based on unscented particle filter and Dempster‐Shafer theory
Abstract In a distributed multi‐station system, the observations received by local radar nodes for a single target will have a large signal‐to‐noise ratio (SNR) bias due to inconsistent radar cross‐sections from distinct angles, different distances from the target, various local interference such as...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-09-01
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| Series: | IET Radar, Sonar & Navigation |
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| Online Access: | https://doi.org/10.1049/rsn2.12594 |
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| _version_ | 1849221196246155264 |
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| author | Haoxuan Du Dazheng Feng Meng Wang Xuqi Shen Duo Ye |
| author_facet | Haoxuan Du Dazheng Feng Meng Wang Xuqi Shen Duo Ye |
| author_sort | Haoxuan Du |
| collection | DOAJ |
| description | Abstract In a distributed multi‐station system, the observations received by local radar nodes for a single target will have a large signal‐to‐noise ratio (SNR) bias due to inconsistent radar cross‐sections from distinct angles, different distances from the target, various local interference such as harsh weather, and dissimilar background noise. Integrating heterogeneous information in dynamic and uncertain environments can be challenging for the fusion centre. Moreover, the particles in the basic particle filter (PF) may degrade after many iterations, making it difficult to achieve accurate target state estimation in the local tracking process. To address these issues, the authors propose a novel method named DS‐UPF based on the Dempster–Shafer (DS) theory and the unscented particle filter (UPF). By updating the important density function, the UPF efficiently suppresses particle degradation. The weighted Basic Probability Assignments (BPAs) are proposed and integrated under the new synthesis formula. The weight‐modified DS method restrains the impact of significant local estimation errors on weighted BPAs fusion result, improving robustness without local interference prior knowledge. The experimental results demonstrate that the DS‐UPF outperforms the unscented Kalman filter, PF, and UPF in tracking tasks under various local interference. This indicates that the proposed algorithm can improve estimation precision in dynamic and uncertain environments. |
| format | Article |
| id | doaj-art-ab9c7822e1cc4e2dabfcc8da50e5f789 |
| institution | Kabale University |
| issn | 1751-8784 1751-8792 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Radar, Sonar & Navigation |
| spelling | doaj-art-ab9c7822e1cc4e2dabfcc8da50e5f7892024-11-17T12:04:35ZengWileyIET Radar, Sonar & Navigation1751-87841751-87922024-09-011891570158310.1049/rsn2.12594Distributed multi‐station target tracking based on unscented particle filter and Dempster‐Shafer theoryHaoxuan Du0Dazheng Feng1Meng Wang2Xuqi Shen3Duo Ye4National Key Laboratory of Radar Signal Processing Xidian University Xi'an ChinaNational Key Laboratory of Radar Signal Processing Xidian University Xi'an ChinaNational Key Laboratory of Radar Signal Processing Xidian University Xi'an ChinaNational Key Laboratory of Radar Signal Processing Xidian University Xi'an ChinaNational Key Laboratory of Radar Signal Processing Xidian University Xi'an ChinaAbstract In a distributed multi‐station system, the observations received by local radar nodes for a single target will have a large signal‐to‐noise ratio (SNR) bias due to inconsistent radar cross‐sections from distinct angles, different distances from the target, various local interference such as harsh weather, and dissimilar background noise. Integrating heterogeneous information in dynamic and uncertain environments can be challenging for the fusion centre. Moreover, the particles in the basic particle filter (PF) may degrade after many iterations, making it difficult to achieve accurate target state estimation in the local tracking process. To address these issues, the authors propose a novel method named DS‐UPF based on the Dempster–Shafer (DS) theory and the unscented particle filter (UPF). By updating the important density function, the UPF efficiently suppresses particle degradation. The weighted Basic Probability Assignments (BPAs) are proposed and integrated under the new synthesis formula. The weight‐modified DS method restrains the impact of significant local estimation errors on weighted BPAs fusion result, improving robustness without local interference prior knowledge. The experimental results demonstrate that the DS‐UPF outperforms the unscented Kalman filter, PF, and UPF in tracking tasks under various local interference. This indicates that the proposed algorithm can improve estimation precision in dynamic and uncertain environments.https://doi.org/10.1049/rsn2.12594distributed sensorsdistributed trackingmultistatic radartarget tracking |
| spellingShingle | Haoxuan Du Dazheng Feng Meng Wang Xuqi Shen Duo Ye Distributed multi‐station target tracking based on unscented particle filter and Dempster‐Shafer theory IET Radar, Sonar & Navigation distributed sensors distributed tracking multistatic radar target tracking |
| title | Distributed multi‐station target tracking based on unscented particle filter and Dempster‐Shafer theory |
| title_full | Distributed multi‐station target tracking based on unscented particle filter and Dempster‐Shafer theory |
| title_fullStr | Distributed multi‐station target tracking based on unscented particle filter and Dempster‐Shafer theory |
| title_full_unstemmed | Distributed multi‐station target tracking based on unscented particle filter and Dempster‐Shafer theory |
| title_short | Distributed multi‐station target tracking based on unscented particle filter and Dempster‐Shafer theory |
| title_sort | distributed multi station target tracking based on unscented particle filter and dempster shafer theory |
| topic | distributed sensors distributed tracking multistatic radar target tracking |
| url | https://doi.org/10.1049/rsn2.12594 |
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