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arXiv 2108.02573eess.SP
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基于和积算法的Agent网络协同定位与多目标跟踪

Cooperative Localization and Multitarget Tracking in Agent Networks with the Sum-Product Algorithm

Mattia Brambilla, Domenico Gaglione, Giovanni Soldi, Rico Mendrzik, Gabriele Ferri, Kevin D. LePage, Monica Nicoli, Peter Willett, Paolo Braca, Moe Z. Win

摘要:

本文讨论了使用位置未知的传感代理网络的多目标跟踪问题。代理都本地化自己在传感器网络中,并在同一时间,执行多目标跟踪的杂波和错过检测的存在。这两个问题是共同解决使用一个整体和集中的方法,其中图论是用来描述代理状态,目标状态和观测之间的统计关系。一个可扩展的消息传递方案,基于和-积算法,能够有效地近似代理和目标状态的边缘后验分布。所提出的方法是通用的,足以容纳一个完整的多基地网络配置,多个发射机和接收机。数值仿真结果表明,所提出的联合方法的优越性能的情况下,其中合作的自定位和多目标跟踪分别进行,因为前者设法从目标中提取有价值的信息。最后,北约科学技术组织(STO)海事研究和实验中心(CMRE)通过自主水下航行器网络在2018年获得的数据证明了该方法在实际应用中的有效性。

英文摘要:

This paper addresses the problem of multitarget tracking using a network of sensing agents with unknown positions. Agents have to both localize themselves in the sensor network and, at the same time, perform multitarget tracking in the presence of clutter and miss detection. These two problems are jointly resolved using a holistic and centralized approach where graph theory is used to describe the statistical relationships among agent states, target states, and observations. A scalable message passing scheme, based on the sum-product algorithm, enables to efficiently approximate the marginal posterior distributions of both agent and target states. The proposed method is general enough to accommodate a full multistatic network configuration, with multiple transmitters and receivers. Numerical simulations show superior performance of the proposed joint approach with respect to the case in which cooperative self-localization and multitarget tracking are performed separately, as the former manages to extract valuable information from targets. Lastly, data acquired in 2018 by the NATO Science and Technology Organization (STO) Centre for Maritime Research and Experimentation (CMRE) through a network of autonomous underwater vehicles demonstrates the effectiveness of the approach in a practical application.

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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