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首页> 外文期刊>Automatic Control, IEEE Transactions on >Distributed Covariance Intersection Fusion Estimation for Cyber-Physical Systems With Communication Constraints
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Distributed Covariance Intersection Fusion Estimation for Cyber-Physical Systems With Communication Constraints

机译：具有通信约束的网络物理系统的分布式协方差相交融合估计

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摘要

This technical note addresses the distributed covariance intersection fusion estimation problem for a class of cyber-physical systems (CPSs), where the raw measurements are preprocessed in each sink node to obtain the local state estimates of a CPS. When each local estimate is transmitted to a remote fusion center (FC), the communication network between the sink node and the FC is subject to finite bandwidth, varying delays and packet dropouts. Based on a new communication constraint model covering all these network phenomena, a recursively distributed fusion estimator (DFE) is designed for the addressed CPSs. Since the estimation performance directly impacts the stability of control operation in CPSs, stability condition is derived such that the mean square error of the designed DFE is bounded, and it is proved that the DFE is independent of the initial values under certain conditions. The design procedure is illustrated using a numerical example.
机译：本技术说明针对一类电子物理系统（CPS）解决了分布式协方差相交融合估计问题，其中在每个汇聚节点中对原始测量值进行了预处理，以获得CPS的局部状态估计。当每个本地估计值发送到远程融合中心（FC）时，宿节点和FC之间的通信网络将受到有限的带宽，变化的延迟和数据包丢失的影响。基于涵盖所有这些网络现象的新通信约束模型，针对所寻址的CPS设计了递归分布融合估计器（DFE）。由于估计性能直接影响到CPS中控制操作的稳定性，因此推导了稳定性条件，使得设计的DFE的均方误差有界，并且证明了DFE在某些条件下与初始值无关。使用数字示例说明了设计过程。

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  • 来源
    《Automatic Control, IEEE Transactions on》 |2016年第12期|4020-4026|共7页
  • 作者

    Bo Chen; Guoqiang Hu; Daniel W. C. Ho; Li Yu;

  • 作者单位

    Department of Mathematics, School of Electrical and Electronic Engineering, College of Information Engineering, Nanyang Technological University, City University of Hong Kong, Zhejiang University of Technology, HangZhou, SingaporeHong KongChina;

    School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore;

    Department of Mathematics, City University of Hong Kong, Hong Kong, China;

    College of Information Engineering, Zhejiang University of Technology, HangZhou, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Estimation; Delays; Bandwidth; Communication networks; Stability analysis; Kalman filters; Real-time systems;

    机译：估计;延迟;带宽;通信网络;稳定性分析;卡尔曼滤波器;实时系统;

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