Research on survivability of spatial information network

In view of the problem that dynamic characteristics are not considered in the current research methods of survivability of spatial information networks. In this paper, based on the dynamic spatial network cumulative model based on time cumulative graph, the survivability evaluation index of dynamic network model, time-dependent network connectivity, is proposed to construct the survivability analysis method model of spatial information network. Finally, the navigation satellite network, communication satellite network and remote sensing satellite network are taken as examples to construct the space information network simulation plan, and the survivability of the space information network is analyzed. The experimental results verify the rationality of the proposed method and the effectiveness of the index.