嵌入式火控系统软件故障树分析研究

摘要

The failure of weapon equipment software can lead to unsuccessful tasks during its use,and effect software reliabili⁃ty. Software fault tree analysis as the primary method of software reliability analysis plays an important role in software optimiza⁃tion and improvement. The software fault tree analysis method is introduced in this paper. The software fault tree analysis is per⁃formed in combination with the characteristics of embedded fire control system. The qualitative and quantitative analyses are car⁃ried out by solving the minimal cut sets. Practice proves that the software fault tree analysis is conducive to improvement of soft⁃ware reliability in system testing or application,and improvement of the combat ability of weapon equipments.%武器装备软件在使用过程中发生失效会导致任务的失败，从而影响软件可靠性。软件故障树分析作为软件可靠性分析的主要方法，在软件的优化和改进中起着重要作用。在此首先介绍了软件故障树分析法，结合嵌入式火控系统软件特点进行软件故障树分析，构造了软件故障树，通过求解最小割集进行定性分析和定量分析。实践证明软件故障树分析有助于提高软件在系统测试或投入使用后的可靠性，提升武器装备的战斗力。