面向任务的空间信息网络关键节点分析模型  

A task-oriented analyzing key nodes model of spatial information networks

作　　者：卢迪 赵忠文 张衷韬 王文卓 LU Di;ZHAO Zhongwen;ZHANG Zhongtao;WANG Wenzhuo(Space Engineering University,Beijing 101416,China)

机构地区：[1]航天工程大学,北京101416

出　　处：《指挥控制与仿真》2024年第4期134-141,共8页Command Control & Simulation

摘　　要：为了挖掘真实任务场景下空间信息网络中的关键节点并着重对其加以保护,从空间信息网络在体系背景下承担的使命任务出发,借助作战环理论对其中的节点类型和信息流动关系予以区分,考虑空间信息网络的高动态性,利用时变图的分析方法对网络进行建模。在空间信息动态网模型的基础上考虑作战环的形成时长赋予作战环价值系数,结合传统复杂网络指标提出了空间信息网络在面向任务时的节点重要性评价指标——时效环介数。通过实验仿真,对比时效环介数与度中心性、以作战环数量为指标的节点重要度,从方法本质上说明了在任务场景下通过时效环介数分析得到的关键节点有效性和合理性。In order to mine the key nodes in the spatial information network in the real task scenario and protect them,based on the mission tasks undertaken by spatial information network in the context of system,node types and information flow relationships are distinguished with the help of operational ring theory.Considering the high dynamic nature of spatial information network,time-varying graph analysis method is used to model the network.Based on the spatial information dynamic network model,the value factor of the operational ring is given by considering the formation time of the operational ring and combining with the traditional complex network indicators,the importance evaluation index of the spatial information network nodes is proposed as time-varying ring betweenness.The effectiveness and rationality of the proposed method are verified by comparing the node importance under indexes of time-varying ring betweenness,degree centrality and number of operational rings through experimental simulation.

关 键 词：空间信息网络 作战环 时间累积时变图 时效环介数 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]