一种孔径分割多功能雷达的改进任务调度方法

A Modified Task Scheduling Method for Multifunctional Radars Based on Aperture Partition

针对孔径分割多功能雷达的实时任务调度问题,提出了一种改进的任务自适应调度方法。该方法充分利用任务时间窗的作用,根据任务的期望执行时刻和时间窗,主动调整任务的实际执行时刻,实现任务间的紧密安排,减少空闲资源的浪费,使得孔径分割多功能雷达能够在有限的资源内调度执行更多的任务。最后将该方法与传统多任务并行(MTPEDF)调度方法进行对比仿真,仿真结果表明该方法提高了任务调度成功率和资源利用率,有效提升了孔径分割多功能雷达的整体调度性能,具有一定的优越性。

In order to solve the real-time task scheduling problems of muhifunctional radar, a method to achieve the task adaptive scheduling of this radar is given. The method makes full use of function of the time window of the task, the actual execution time of the task is activel adjusted according to the expected execution time and the time window of the task to achieve the close arrangement among the tasks, reduce the waste of free re- sources and make the muhifunctional radar based on aperture partition to execute more tasks within the limited resources. Finally, the method is compared and simulated with the multiple task parallel earliest deadline first （MTPEDF） algorithm. The analysis result indicates that the method increases the task scheduling ratio and re- source utilzation ratio, and effectively improves the overall scheduling performance of the multifunctional radar based on aperture partition, and has certain advantages.