基于内部1553B总线的航天器控制系统可测试性框架设计与验证

Frame Design and Verification of DFT Technique for Control System of Spacecraft Based on 1553B Bus Architecture

可测试性设计是提升系统研制效率和测试品质的重要方法.给出基于内部1553B总线的航天器控制系统可测试性设计的分层递阶结构,建立可测试性设计的模型框架,并对基于1553B总线的航天器控制系统可测试性设计的技术实现进行了分析.最后利用TEAMS软件结合实例进行可测试性设计仿真评估,评估结果证明了这种可测试性设计方法的有效性.

Design for testability （DFT） is an important approach to improve the manufacturing efficiency and test quality of a system. The hierarchical structure of DFT for AOCS of spacecraft based on 1553B bus architecture is given and the model frame of DFT is built. The technical realization of DFT is also analyzed. The software TEAMS（testability engineering and maintenance system） is used to simulate and evaluate the DFT via an example and the simulation result demonstrates the validity of this method.