基于改进时间指针的相控阵雷达任务调度方法

Task scheduling algorithm for phased array radar based on modified time pointer

针对相控阵雷达实时任务调度中时间资源利用不充分的问题,提出了一种基于改进时间指针的任务自适应调度方法。以时间指针为对象,从整个调度时间轴上所有满足时间指针处执行条件的任务请求中,选择一个优先级最高的任务作为当前时刻的执行任务,有效减少了空闲时间的浪费,使得相控阵雷达能够在有限时间资源内调度执行更多的任务。与基于传统时间指针的调度方法仿真对比,结果表明:方法提高了任务调度成功率和时间利用率,有效提升了相控阵雷达的整体调度性能,具有一定的优越性。

Aiming at the insufficient utilization of time resources of the phased array radar real-time task scheduling, a method based on modified time pointer is given to achieve task adaptive scheduling. Method takes the time pointer as object, selects the highest priority task to be current one from all tasks on the timeline that need to he scheduled and meet the execution conditions of the time pointer. The method reduces the waste of idle time effectively, and makes the radar to execute more tasks in limited time resources. Compared with the methods based on conventional time pointer by simulation, the result shows that the method increases task scheduling ratio and time utilization, improves the overall scheduling performance of the phased array radar, and has certain advantages.