The method of health management on satellite constellation network

The method of health status cognition and decision on satellite constellation network based on complex network algorithms is proposed in this paper. Firstly, we describe the satellite network as a complex network, which is comprised of satellites, ground stations and links. We will prove that the satellite constellation networks have the characters of small world. Secondly, we will search for the key nodes of satellite constellation networks with evaluating algorithm of node importance. Thirdly, the health status of satellite constellation network could be evaluated according to real time operating state and decision criterion. Finally, take China’s environmental and disaster monitoring and forecasting satellite constellation for example, we make the experimental analysis in order to verify the correctness of ideas proposed in this paper.