Abstract:

Considering the representative time-varying feature of topology structure in satellite network, through building a time-varying topology sequence model, the time-varying satellite topology network is  decomposed into a series of steady state topology structure. Considering the influence of global importance and local importance, an evaluation method for node importance of steady-state satellite network is proposed by taking the node betweenness, node closeness and node distance importance contribution as measurement parameters. An evaluation algorithm for time-varying satellite topology network node importance is proposed. A representative example is used to validate the accuracy and validity of the algorithm. The experiment results demonstrate that the method distinguishes node importance of time-varying satellite topology network effectively, and evaluates the controlling force of the satellite node accurately.