中高轨天基骨干网络性能研究  

Research on Performance of Space-Based Backbone Networki n Medium and High Orbit

作　　者：李杰[1] 冯旭哲[1] 代建中 LI Jie;FENG Xu-zhe;DAI Jian-zhong(College of Intelligence Science and Technology,National University of Defense Technology,Changsha Hunan 410073,China)

机构地区：[1]国防科技大学智能科学学院,湖南长沙410073

出　　处：《计算机仿真》2023年第7期32-37,48,共7页Computer Simulation

摘　　要：基于中高轨多层骨干网络对空间用户服务的独特优势,其网络性能的研究得到广泛重视。现基于中高轨天基骨干网络对空间用户的接入性能进行研究。首先对中高轨天基骨干网络星间可视性进行建模分析,并对骨干网的空域覆盖性进行了仿真;其次对满足空域全覆盖的骨干节点转发器的配置个数及参数进行研究;最后从传输时延、转发器和节点复杂度三个方面对中高轨组成的四种骨干网架构的网络性能进行综合评价对比分析,并对综合评价函数的权重因子取值进行对比研究。结果表明,中高轨天基骨干网能实现全空域的双重覆盖;综合评价函数权重因子取值的不同会导致各天基骨干网架构性能优劣的不同,实际权重因子的取值由当前工程实际情况而定。以上研究可以为多层骨干网络设计提供借鉴。Based on the unique advantages of the mid-high orbit multi-layer backbone network for space user services,the research on its network performance has received extensive attention.This paper studies the access per-formance of space users based on the mid-to-high orbit space-based backbone network.Firstly,the inter-satellite visibility of the mid-high orbit space-based backbone network was modeled and analyzed,and the airspace coverage of the backbone network was simulated.Secondly,the configuration number and parameters of the backbone node transponders that meet the full coverage of the airspace were studied.Finally,the comprehensive evaluation and com-parative analysis of the network performance of the four backbone network architectures composed of medium and high rails were carried out from the three aspects of transmission delay,transponder and node complexity,and the value of the weight factor of the comprehensive evaluation function was compared and studied.The results show that the mid-to-high orbit space-based backbone network can achieve double coverage of the entire airspace.The difference in the value of the weight factor of the comprehensive evaluation function will lead to the difference in the performance of each space-based backbone network architecture.The value of the actual weight factor depends on the actual situation of the current project.This article can provide a reference for multi-layer backbone network design.

关 键 词：多层卫星网络 星间链路 网络性能 天基网络 

分 类 号：V411.8[航空宇航科学与技术—航空宇航推进理论与工程]