地基测控网健康状态评估方法

为从整体上掌握地基测控网的健康状态,针对地基测控网的特点构建了地基测控网健康状态评估模型,提出通过实测指标数据和指标标准值之间的差额评价指标项,分析控制中心、测控节点和通信链路3个模块影响地基测控网健康状态的指标项,利用层次分析法确定评估模型中各指标项的权重,根据测控网运行要求给出各指标项的标准值,并基于2015年S频段地基测控网和在轨航天器实际,对S频段地基测控网的健康状态进行了评估,评估结果为2015年S频段地基测控网健康指数为88.32%,健康等级为良。该结果表明,提出的评价方法可直观地判断地基测控网的健康状态水平,可在测控网运行管理中得到应用。

Health State Evaluation Method for Ground-Based TT&C Networks

For the purpose of mastering the overall health state of the ground-based Tracking, Telemetry and Command(TT&C) networks, a health evaluation model for ground-based TT&C networks is established based on the characteristics of ground-based TT&C networks.A method using the difference between measured value and standard value of indexes to evaluate indexes is proposed.The indexes of three modules(control center module, TT&C nodes module and communication links module) that can influence the health state of ground-based TT&C networks is analyzed.The weight of each evaluation index for the evaluation model using Analytic Hierarchy Process(AHP) is determined and standard value for each index in operation of ground-based TT&C networks is given.Based on 2015 S-band TT&C equipment and on-orbit spacecraft to evaluate the health status of S-band ground-based TT&C network in China, the evaluation results are that the health index was 88.32% and the health level was good.The results show that the proposed evaluation method can determine the health status of ground-based TT&C networks directly and can be used in operation management of TT&C networks