arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2603.20144eess.SYcs.SY
收藏

分布式状态估计用于离散时间线性时不变系统:设计三重困境和一种新框架

Distributed State Estimation for Discrete-time LTI Systems: the Design Trilemma and a Novel Framework

University College London(伦敦大学学院);Loughborough University(拉夫堡大学)

Ruixuan Zhao, Guitao Yang, James Fleming, Boli Chen

AI总结:

本文探讨了分布式状态估计中系统可观测性、通信频率和网络连通性之间的三重困境,并提出了一种基于迭代半正定规划的通用框架以平衡这些因素。

摘要:

随着物联网技术的进步和物理信息系统快速扩展,对分布式状态估计的兴趣日益增加,其中多个传感器协同监测大规模动态系统。与连续时间对应物相比,离散时间分布式观测器面临更大挑战,因为它无法利用高增益机制或瞬时通信。现有方法依赖于三个紧密耦合的因素:(i)系统可观测性,(ii)交换信息的通信频率和维度,以及(iii)网络连通性。然而,这些因素之间的相互依赖性仍被忽视。本文识别了这些因素之间的根本三重困境,并引入了一种通用设计框架,通过迭代半正定规划方法来平衡它们。因此,所提出的方法减轻了现有方法中存在的一些限制假设。通过模拟示例展示了所提出方法的有效性和通用性。

英文摘要:

With the advancement of IoT technologies and the rapid expansion of cyber-physical systems, there is increasing interest in distributed state estimation, where multiple sensors collaboratively monitor large-scale dynamic systems. Compared with its continuous-time counterpart, a discrete-time distributed observer faces greater challenges, as it cannot exploit high-gain mechanisms or instantaneous communication. Existing approaches depend on three tightly coupled factors: (i) system observability, (ii) communication frequency and dimension of the exchanged information, and (iii) network connectivity. However, the interdependence among these factors remains underexplored. This paper identifies a fundamental trilemma among these factors and introduces a general design framework that balances them through an iterative semidefinite programming approach. As such, the proposed method mitigates the restrictive assumptions present in existing works. The effectiveness and generality of the proposed approach are demonstrated through a simulation example.

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。

↑