摘要
为了应对卫星导航系统内部复杂关系等体系特征为其安全分析带来的挑战、全面识别和分析卫星导航系统面临的体系安全威胁、提高系统的安全性和服务能力,基于功能依赖网络分析理论提出了从体系角度研究卫星导航系统安全性的建模方法,重点对导航系统内组件系统之间交互关系导致的危险传播、任意失效组合进行了后果分析和原因调查。仿真结果表明该方法能清晰地描述危险传播和失效组合的过程以及进行正逆向的推理分析,也证明了该方法在卫星导航系统安全分析问题上的潜力和适用性。
In order to address challenges of safety analysis of global navigation satellite systems （GNSS） brought by its system of systems （SoS） characteristics such as complex relationships between its component systems, to identify and study the SoS safety hazards across-the-board, and to improve its safety and enhance the service, a GNSS safety modeling method was proposed in the base of the functional dependency network analysis theory from the view of SoS. The effects and reasons of hazards promulgation and random failures combination caused by complex relationships between component systems in GNSS were analyzed and investigated with some emphasis. The simulation results show that the method is able to describe the influencing process of hazards promulgation and failures combination clearly and conduct both orthodromic and antidromic reasoning analysis. The results also demonstrate the great potential and applicability of the method to SoS safety analysis of GNSS.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2015年第2期92-98,共7页
Journal of National University of Defense Technology
基金
国家自然科学基金资助项目(91024015)
关键词
卫星导航系统
体系
安全性分析
功能依赖网络分析
global navigation satellite systems
system of systems
safety analysis
functional dependency network analysis
