基于ADC模型的导航星座系统效能分析  

System Effectiveness Analysis of Navigation Constellation Based on ADC Model

作　　者：杨卓鹏[1] 郑恒[1] 李海生[1] 

机构地区：[1]中国航天标准化与产品保证研究院,北京100071

出　　处：《工业工程与管理》2016年第3期145-152,共8页Industrial Engineering and Management

基　　金：导航专项预研基金资助项目(WDJBZX01060301)

摘　　要：针对导航星座星地联动运行、单星轨道机动调控、可靠性、维修性、保障性要求高、面向用户指标集中等特点,在分析导航星座系统效能概念的基础上,研究提出以星座可用性、连续性、覆盖性为构成要素,集成应用Petri网、中断分析、贝叶斯网构建星座系统效能模型的方法,利用重要度排序识别系统薄弱环节并给出优化方案比对分析。最后将模型应用于虚拟构建的区域导航系统。仿真算例表明,提出的建模与分析方法可为导航星座设计优化和星地保障运行方案决策提供量化依据。Focusing on the satellite-station interactive operation,orbital maneuver,high reliability,maintainability,supportability,and concentrated users' index,the definition of navigation constellation system effectiveness is addressed firstly,then the method for system effectiveness model is proposed by applying Petri nets,outage analysis and Bayesian networks.Factors such as availability,continuity and coverage are taken into account for modeling.The weakness of system is confirmed and different schemes are compared.Finally,virtual regional navigation system is analyzed by using the proposed model.Results show that this model can be used for optimization design of navigation constellation and logistical scheme of satellite-station interactive operation.

关 键 词：可用性 连续性 覆盖性 系统效能 

分 类 号：TN967.1[电子电信—信号与信息处理]