一种面向任务优化的多核心星务管理系统设计

摘要

To improve the on board data handling ability,an on-board electronic system required further optimization.On the basis of present reconfigurable on-board computer design,the paper introduced a concept of multiple core processors.According to the functions of the data handling and limitation of the hardware resource,the tasks implemented by single processor are divided into two parts taken by dual-processors.Compared with on-board computer employed on SY-3,multiple core processors have surmounted the peers in computation speed and calculation accuracy.The result verifies that multiple processors will play an important role in future spacecraft designs.%为进一步提升小卫星的数据处理能力,对星载电子系统进行了优化设计.在现有可重构星务管理系统的基础上,提出一种多核心处理器星务管理系统设计方法.结合多核心处理器特点,按照硬件资源以及任务模式对星务管理系统的传统任务划分方法进行优化,将单一处理器任务集中处理的模式分解为主、协处理器双核任务处理模式.与哈尔滨工业大学试验卫星三号星载计算机的功能对比表明,多核心可重构星务管理系统在运算速度、控制计算精度方面优于传统的星务管理系统处理方式,有能力替代现有的星载计算机成为未来微型航天器的核心.