具有相依特性的航天测控网稳定性分析

Analysis of the Robustness of TT&C Networks with Interdependent Characteristics

随着信息技术的不断提升,航天测控网各系统中的耦合和依赖变得越来越强烈。针对这种具有相依特性的测控网络的稳定性问题,提出借助于相依网络的分析方法,根据信息在测控网中所起的作用,对航天测控网相依特性进行分析、研究,特别是相依网络的级联失效过程进行稳定性分析。将航天测控网划分为具有相依特性的数据信息和控制信息,通过针对单侧网络进行蓄意攻击,研究不同控制信息模式下航天测控系统的稳定性,提出构建稳定、高效的测控网的方法。仿真结果表明,在数据信息遭受攻击时,合理规划控制信息形态并减小控制信息规模,能够有效保障航天测控系统的稳定性。

With the development and growing applications of information technology,the coupling and dependency of systems in space TT＆C （Tracking,Telemetry and Command）networks is becoming more and more intense. The use of the analysis method for interdependent networks is proposed to enhance the robustness of TT＆C net-works with interdependent characteristics.Information in space TT＆C networks is categorized into interdependent data information and control information based on the role of information in the networks following analysis of the stability of cascade failure process of interdependent networks for space TT＆C networks.The robustness of space TT＆C networks in different control information modes is studied for targeted attacks on single-sided networks.A method is proposed for building a robust and high efficiency TT＆C network.Simulation results show that the ro-bustness of a space TT＆C network can be effectively protected by rational planning and reducing the size of control information in case of attacks on data information.