Abstract
The tracking of maneuvering targets in radar networking scenarios is studied in this paper. For the interacting multiple model algorithm and the expected-mode augmentation algorithm, the fixed base model set leads to a mismatch between the model set and the target motion mode, which causes the reduction on tracking accuracy. An adaptive grid-expected-mode augmentation variable structure multiple model algorithm is proposed. The adaptive grid algorithm based on the turning model is extended to the two-dimensional pattern space to realize the self-adaptation of the model set. Furthermore, combining with the unscented information filtering, and by interacting the measurement information of neighboring radars and iterating information matrix with consistency strategy, a distributed target tracking algorithm based on the posterior information of the information matrix is proposed. For the problem of filtering divergence while target is leaving radar surveillance area, a k-coverage algorithm based on particle swarm optimization is applied to plan the radar motion trajectory for achieving filtering convergence.
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Foundation item: the Joint Fund of Advanced Aerospace Manufacturing Technology Research (No. 2017-JCJQ-ZQ-031)
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Huang, Y., Wu, Y., Yao, L. et al. A Class of Distributed Variable Structure Multiple Model Algorithm Based on Posterior Information of Information Matrix. J. Shanghai Jiaotong Univ. (Sci.) 27, 671–679 (2022). https://doi.org/10.1007/s12204-022-2458-x
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DOI: https://doi.org/10.1007/s12204-022-2458-x
Key words
- radar network system
- variable structure multiple model
- consistency filtering
- information matrix
- particle swarm optimization