A graph-model-based structure vulnerability Analyzing method on satellite network

The satellite network has features like complex, dynamic and fuzzy. Compared to ground information systems, satellite network has more vulnerabilities that are hard to anticipate, and needs a beforehand study to ensure its safely construction. This article uses a vulnerability Analyzing method based on graph model. It uses the relatively still structure as stand point in the dynamic satellite network environment. It synthetically analyses relative vulnerabilities in the network from node level, chain level and access path level. Through simulations with the GIG application layer network structures as the scenarios, this kind of satellite network structure vulnerability analysis method gets its veracity and application value proved.