Research And Implementation Of Constellation Network Management In Common Service Support Platform Of Space-earth Integrated Network

With the continuous development of communication network technology and the increasing demand for communication,terrestrial information system can not fully meet the needs of large-scope informatization in society and national defense,and the needs of development for multiple types of information fusion and sharing.Developing an information network by establishing an information infrastructure in space is important.Spatial information infrastructure must be completed by the space satellite communication system on the perception of space-based information,transmission and a series of tasks.And it needs to set up low-orbiting satellites,high-altitude satellites,and ground stations among the network,integrate the inter-satellite network and terrestrial Internet,and build a new type of world-wide integrated communications network.The subject aims at the management of high-altitude satellites networking in space-earth integrated Network,which is different from the previous data storage in the ground station for unified management.It proposes to improve the networking control and storage of routing information by distributed technology,and store the resources in distributed satellite network.By adapting the consistency hash algorithm,a decent distributed routing control method and distributed management of resource data are designed and implemented to alleviate the instability of the satellite communication link,insufficient storage resources,and also improve the stability of satellite communications.This dissertation firstly introduces the research background and significance of the common service support platform of Space-Earth integrated network,proposes a hybrid low-orbit satellite network scheme,simultaneously carries out requirements analysis and scheme design,and on this basis,improves the CHORD consistency hash algorithm at the point of routing maintainance and improve the routing redundancy,designed for satellite network distributed networking algorithm.Then,the dissertation designs the core functions of the system,the external interfaces,the data structure and the relationship between them,and provides the constellation routing management and resource storage query service,and completes the design of interaction process between constellation network and resource management.At last,the dissertation designs and realizes it in detail,completes the function test,and summarizes the work and prospects in the future.