scholarly journals Trajectory Optimization for Multitarget Tracking Using Joint Probabilistic Data Association Filter

2020 ◽  
Vol 43 (1) ◽  
pp. 170-178 ◽  
Author(s):  
Shaoming He ◽  
Hyo-Sang Shin ◽  
Antonios Tsourdos
Keyword(s):  
Trajectory Optimization ◽  
Data Association ◽  
Multitarget Tracking ◽  
Probabilistic Data ◽  
Probabilistic Data Association

scholarly journals Epipolar Multitarget Velocity Probability Data Association Algorithm Based on the Movement Characteristics of Blasting Fragments

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Jinyang Chen ◽  
Shangjiang Yu ◽  
Xian Chen ◽  
Yongjun Zhao ◽  
Yunhe Cao ◽  
...  
Keyword(s):  
Data Association ◽  
The State ◽  
Doppler Velocity ◽  
Multitarget Tracking ◽  
Probabilistic Data ◽  
Probabilistic Data Association ◽  
Movement Characteristics ◽  
Velocity Probability ◽  
Blast Fragmentation ◽  
Simulation Results

Fragments generated from the blast-fragmentation warhead after blasting are typically multiple, fast, small, and dense. In light of the epipolar multitarget feature of blasting fragments, this paper utilizes the movement characteristics of blasting fragments for modeling. Then, the modeling results are adopted in probabilistic data association (PDA) algorithm of multitarget tracking. A novel epipolar multitarget velocity PDA (VPDA) algorithm is proposed based on the movement characteristics of blasting fragments. This algorithm forms the movement characteristics with the finite element simulation results of warhead blasting fragments, utilizes the Doppler velocity probability to reassign the association probability, and updates the state and covariance of each target through the probability weighted fusion. Simulation results demonstrate that, the computational complexity of the proposed algorithm is close to that of PDA algorithm, and the association success rate and the state value update error approximates to the association effects of joint probabilistic data association (JPDA) algorithm, which can effectively track the fragments with identical velocity while reducing the complexity of the epipolar multitarget tracking algorithm, and can respond to the group target tracking scenario.

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