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    • 14. 发明公开
    • NETWORKS
    • EP1869491A1
    • 2007-12-26
    • EP06710172.5
    • 2006-03-15
    • BAE Systems PLC
    • WILLIAMS, Mark, Lawrence
    • G01S13/72H03H21/00G01S13/87
    • G01S13/723G01S13/878
    • A method for estimating a system state, for example an aircraft trajectory, in a decentralised network having a plurality of nodes, each node having means for receiving and sending information and means for processing information, and each node being connected to neighbouring nodes of the network, the method comprising, at each node: (i) maintaining a set of particles and associated weights, which represent an estimate of the system state, (ii) representing the estimated system state as a mixture of Gaussian distributions in a channel filter, and communicating the mixture to neighbouring nodes, and (iii) a neighbouring node receiving the mixture in a channel filter that contains a similar Gaussian representation of its own estimate of system state, and dividing the incoming mixture by the existing mixture, for updating the estimate of the system state that is maintained at the node.
    • 一种用于在具有多个节点的分散式网络中估计系统状态(例如飞机轨迹)的方法,每个节点具有用于接收和发送信息的装置和用于处理信息的装置,并且每个节点连接到网络的相邻节点 该方法包括:在每个节点处:(i)维持表示系统状态的估计的一组粒子和相关联的权重,(ii)将估计的系统状态表示为信道滤波器中的高斯分布的混合,以及 (iii)在信道滤波器中接收混合的相邻节点,该信道滤波器包含其自己的系统状态估计的相似高斯表示,并且将进入的混合物除以现有混合,用于更新 在节点上维护的系统状态。