摘要
提出一种反馈调度的方法在线调节控制任务的截止时限,从而减少输出抖动.反馈控制器采用比例算法,通过对其参数的自调整以动态满足整个任务集的可调度性.控制算法被公式化为一个截止时限分配表达式.仿真结果验证了该方法的有效性.
A feedback scheduling approach was presented to adjust control tasks＇ deadlines online thus to reduce output jitter. The feedback controller employs a proportional law, whose parameter is adjusted adaptively to satisfy the total task set schedulability dynamically. The control algorithm is formulized as a deadline assignment expression. The simulation results illustrate its effectiveness.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2005年第12期2052-2056,共5页
Journal of Shanghai Jiaotong University
关键词
实时控制系统
反馈调度
抖动
最早截止时限优先
real-time control systems
feedback scheduling
jitter
earliest deadline first （EDF）
