卫星网络建模与分布式仿真

卫星网络仿真是对卫星网络进行优化设计、性能分析、效能评估的有效途径.针对卫星网络的组成结构和运行特点,建立了卫星网络的节点模型、结构模型、链路模型和通信模型.在此基础上,基于HLA/RTI体系设计并实现了分布式卫星网络仿真系统,详细给出了各联邦成员的设计.该仿真系统通过编辑想定方案可灵活部署网络结构并能仿真星间、星地链路的通信过程,为仿真验证面向应用的卫星网络理论研究成果提供了一个通用的支撑平台.最后给出了一个3GEO 15MEO想定场景下的仿真结果,验证了模型的正确性和有效性.

Modeling and Distributed Simulation of Satellite Networks

Simulation is one of the most effective methods in designing, analyzing and evaluating satellite networks. Based on the structure and operation features of satellite networks, the node model, structure model, link model and communication model are presented. Moreover, a flexibly configurable HLA/RTI-based satellite network simulation system which is able to simulate the communication between both ISL and ESL is designed and implemented, and the design of federate members is described in detail. This simulation system is also a general platform which can validate the application-oriented theory of satellite networks. The result under a scenario which includes three GEO satellites and fifteen MEO satellites validates these models.