随着卫星网络技术的发展,对于卫星组网协议的研究越来越多.由于卫星设计生产周期长、费用高,设计构建可控制、可重现的仿真实验环境是一种重要的协议研究手段.本文提出了一种面向卫星星座的天基无线网络链路仿真系统的分布式体系结构,对卫星通信中带宽、时延和误码率三个重要参数进行了仿真,解决了分布式链路仿真中的虚拟多链路、链路属性建模等关键技术,并且实现了一套原型系统,对其链路仿真能力进行了验证.%With the development of the satellite network technology, more and more research has been done on satellite network protocols. Because the design and production of one satellite takes a long time and costs very much, an important method for studying satellite protocols is to build a controllable and reviewable simulation environment.In this paper, an ar-chitecture for space-based network simulation systems is proposed, which can supply simulation on three most important pa-rameters in satellite communications: bandwidth, delay and bit error rate. Additionally, the proposed architecture resolves the key technologies such as the emulation of virtual multi-links and the modeling of link attributes in the distributed simula-tion system. Finally, a prototype system is realized to verify the simulation ability of the architecture.
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