基于SCA的综合通信导航识别系统任务可靠性研究

摘要

Because the traditional mission reliability model is not suitable for multi-channels mission reliability analysis in integrated communication navigation and identification system based on software communications architecture (SCA-ICNI) system. This paper analyzed the multi-mission channels unit’s mission reliability, established and simplified the reliability model, and analyzed the key factors of the model. Based on this, this paper analyzed the mission reliability when it worked independently or in different priority or in trouble. At last, this paper statistically analyzed the mission reliability in different conditions. Compared to the traditional CNI system, the results showed that the total mission reliability is much better.%　　针对传统任务可靠性模型不能适应基于SCA架构的综合通信导航识别系统(SCA-ICNI系统)多任务通道任务可靠性分析的问题，本文首先研究了多任务通道模块的任务可靠性，简化了其可靠性模型，在此基础上，建立了一种以任务通道为基本单位的系统任务可靠性框图和数学模型，并对影响其任务可靠性的关键因素进行分析。其后，分析了在系统任务独立运行、优先级以及故障条件下的任务可靠性。最后以具体数据分析了典型波形任务在不同条件下系统的任务可靠性，比传统的CNI系统的任务可靠性有显著提升。