冗余系统的生存能力分析与评估

Survivability analysis and evaluation for redundant system

立足于任务这个高层次的用户需求,通过对系统持续执行任务能力的参数分析,给出了应用美国工业界武器系统效能委员会(WSEIAC)提出的效能评估方法来分析和评价系统生存能力的方法.在此基础上,针对应用广泛的k/N热备份冗余结构,给出了具体系统生存能力的分析和评估方法.仿真实验表明,该分析方法有助于分析冗余技术对生存能力的影响,以便系统设计者合理应用冗余技术,在有限的资源下尽可能增强系统的生存能力.

Based on the tasks, the high level user requirement, and by analyzing the parameter of the continued ability to carry out its tasks, the method of the analysis and evaluation of system survivability based on weapon system effectiveness industry advisory committee （WSEIAC） is presented. Based on this method hot standby redundant structure （k out-of-N system） can be analyzed and evaluated in detail. The simulation shows that the analysis method is useful for system designers to make reasonable use of redundancy technology, and can improve the system survivability with limited resources.