针对多功能雷达多维资源管理问题,提出了一种基于多任务并行截止时间优先(MTPEDF) 算法的频率自适应MTPEDF(FA-MTPEDF)任务调度方法。该方法利用任务工作频率的可调节性,在任务频谱资源冲突时先进行变频寻优,在寻优失败后才考虑推迟执行时刻,从而达到充分利用系统频谱资源、提升系统事件容量的目的。仿真结果表明,该文方法可以合理分配系统时间、孔径、能量和频谱资源,相比于传统截止时间优先(EDF)算法和MTPEDF算法任务丢失率更低、资源利用率更高,可以有效改善多功能雷达多任务执行能力与资源利用能力。

Aiming at the multidimensional resource management problem of multifunctional radar, a frequency adaptive MTPEDF(FA-MTPEDF) task scheduling method based on multiple task parallel earliest deadline first (MTPEDF) algorithm is proposed. In this method, frequency conversion optimization is performed first by utilizing the adjustability of task working frequency when the task spectrum resource conflict, and the execution time is delayed only after the optimization fails, so as to make full use of the system spectrum resource and improve the system event capacity. Simulation results show that the system time, aperture, energy and spectrum resources can be allocated reasonably by the proposed method. Compared with traditional earliest deadline first (EDF) algorithm and MTPEDF algorithm, the proposed method has lower task loss rate and higher resource utilization rate, which can effectively improve the multiple task execution capacity and resource utilization capacity of multifunctional radar.

TN953+ . 7