面向航天系统的嵌入式操作系统实时性评测

Real-time performance evaluation of embedded operating system in aerospace

针对航天系统的嵌入式操作系统选型的问题,分析航天系统星载计算机的实时性需求,提出了一个包含五大类评价指标的实时性评价体系。按照评价体系的各个指标,采用基于SPARC架构的S698-MIL嵌入式平台对在航天领域广泛使用的典型嵌入式操作系统进行了评测。实验结果表明,该评价体系能对嵌入式操作系统的实时性做出全面的评价和分析,并对航空系统的嵌入式操作系统选型提供可靠的决策支持。

In order to select embedded operating system （tK~） of on-board computer in aerospace, different real-time requirements is stu- died and an evaluation framework of the real-time performance of EOS is proposed. Then the rmst popular and representative used in aerospace systems are evaluated based on S698-MIL embedded platform of SPARC. Finally, the experiments show that the framework has an effect on evaluating the real-time performance of EOS comprehensively, and is used to give a reference in the EOS selection.