基于联合EDF和多模板的天波雷达波位调度方法  

Beam position scheduling method of OTHR based on combined EDF and multiple templates

作　　者：韩伟[1] 王国师[1] 张朝伟[1] 余志惠[1] HAN Wei;WANG Guoshi;ZHANG Chaowei;YU Zhihui(Radar NCO School,Air Force Early Warning Academy,Wuhan 430019,China)

机构地区：[1]空军预警学院雷达士官学校

出　　处：《系统工程与电子技术》2020年第3期582-588,共7页Systems Engineering and Electronics

基　　金：国家自然科学基金青年科学基金(51309232)资助课题

摘　　要：天波超视距雷达能够同时探测空中目标和海面目标,具备执行多任务的能力,为优化整体探测效能,必须考虑波位调度问题。借鉴相控阵雷达资源调度思想,结合天波超视距雷达工作方式和任务特点,研究了一种修正截止优先(earliest deadline first,EDF)和多模板相结合的波位调度方法。首先,在经典修正EDF方法基础上对截止期进行重新定义,并改进任务优先级计算方法;然后,设计了三种波位调度模板;最后,根据任务优先级计算结果,自适应选择调度模板。该方法能够使雷达探测资源在复杂任务场景下得到更加精细的配置,从而最大化发挥其探测效能。Sky wave over-the-horizon radar(OTHR)can both detect air targets and sea targets,having good capability of performing complex and diversified mission.The beam scheduling problem of OTHR must be concerned for optimizing the overall detection effectiveness.Combined with the working mode and mission characteristics,the resource scheduling idea of phased array radar is introduced,and a new scheduling method combining earliest deadline first(EDF)and multiple templates is studied.First,the deadline is defined newly and the calculating method of task priority is improved.Then,three kinds of templates of beam position scheduling are designed.Finally,the scheduling templates are chosen adaptively according to the calculating method of task priority.This method can provide exquisite resource deployment of OTHR in complex and diversified early warning detection mission,which accordingly optimizes detection effectiveness.

关 键 词：天波超视距雷达 探测效能 波位调度 修正截止优先 多模板 

分 类 号：TN957[电子电信—信号与信息处理]