Space-based giant network vulnerability assessment method based on node importance ranking

The invention provides a space-based giant network vulnerability assessment method based on node importance ranking. The method comprises the following steps: step 1, creating a spatial information network topology structure of a to-be-assessed space-based giant constellation network; step 2, calculating an importance index of each node in the spatial information network topology structure; step 3, creating a key node set based on the obtained importance index; 4, judging the efficiency of the space-based giant constellation network to be evaluated according to the obtained key node set; according to the method, the key node set of the network can be effectively identified, and the vulnerability of the network is evaluated through the damage effect of the node set, so that efficient damage or key protection of the space-based giant network is realized. 本发明提供的一种基于节点重要度排序的天基巨型网络脆弱性评估方法，包括以下步骤：步骤1，创建待评估天基巨型星座网络的空间信息网络拓扑结构；步骤2，计算空间信息网络拓扑结构中每一个节点的重要度指标；步骤3，基于得到的重要度指标创建关键节点集合；步骤4，根据得到的关键节点集合判断待评估天基巨型星座网络的效能；本发明能够有效