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arXiv 2106.04898eess.SYcs.CVcs.SY
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具有失序测量的连续-离散多目标跟踪

Continuous-discrete multiple target tracking with out-of-sequence measurements

University of Liverpool(利物浦大学);Universidad Antonio de Nebrija(安东尼奥·德·内布里哈大学);University of Electronic Science and Technology of China(电子科技大学)

Ángel F. García-Fernández, Wei Yi

摘要:

本文推导了连续时间多目标跟踪中观测值乱序(OOS)集的最优贝叶斯处理方法。我们考虑一个以连续时间建模的多目标系统,当我们接收到测量值时,该系统在时间步处被离散化,这些测量值根据标准点目标模型分布。在采样时间步长处关于该系统的所有信息由所有轨迹的集合上的后验密度提供。该密度可以通过连续-离散轨迹泊松多伯努利混合(TPBM)滤波器来计算。当我们接收到OOS测量时,最优贝叶斯处理执行追溯步骤,该步骤在OOS测量时间戳处添加轨迹信息,然后执行更新步骤。在OOS测量更新后,后部保持TPBM形式。我们还提供了一个计算更轻的替代方案的基础上的轨迹泊松多伯努利滤波器。两种方法处理OOS测量的有效性进行了评估,通过模拟。

英文摘要:

This paper derives the optimal Bayesian processing of an out-of-sequence (OOS) set of measurements in continuous-time for multiple target tracking. We consider a multi-target system modelled in continuous time that is discretised at the time steps when we receive the measurements, which are distributed according to the standard point target model. All information about this system at the sampled time steps is provided by the posterior density on the set of all trajectories. This density can be computed via the continuous-discrete trajectory Poisson multi-Bernoulli mixture (TPMBM) filter. When we receive an OOS measurement, the optimal Bayesian processing performs a retrodiction step that adds trajectory information at the OOS measurement time stamp followed by an update step. After the OOS measurement update, the posterior remains in TPMBM form. We also provide a computationally lighter alternative based on a trajectory Poisson multi-Bernoulli filter. The effectiveness of the two approaches to handle OOS measurements is evaluated via simulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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