一类航天器控制系统反馈调度方法研究

A feedback scheduling algorithm for spacecraft control system

摘要:

针对目前航天器控制系统普遍采用静态调度方式，不能够及时调整计算资源分配的问题，提出了一种基于执行时间测量的计算资源反馈调度算法。该方法一方面保证航天器在工作时间段控制精度达到指标要求，另一方面能够动态调整计算资源与控制增益，降低系统功耗。同时在计算机发生故障时保证航天器控制系统稳定运行。最后通过仿真分析验证了方法有效性。

Abstract:

In this paper, for the commonly static scheduling method cannot timely adjust the allocation of computing resources, we propose a feedback scheduling algorithm for the spacecraft control system based on the execution time measurement. On the one hand, this method ensures that the control precision of the spacecraft meets the requirements of the performance index during working hours. And on the other hand, it can dynamically adjust the computing resources and control gains to reduce the system power consumption. At the same time, it ensures the stability of the spacecraft control system in the event of a computer failure. At last, the effectiveness of the method is verified by simulation analysis.