北京航空航天大学学报 ›› 2016, Vol. 42 ›› Issue (12): 2722-2729.doi: 10.13700/j.bh.1001-5965.2015.0779

• 论文 • 上一篇    下一篇

饱和时序下防空相控阵雷达动态优先级调度算法

张浩为, 谢军伟, 师俊朋, 李靖卿, 盛川   

  1. 空军工程大学 防空反导学院, 西安 710051
  • 收稿日期:2015-11-25 出版日期:2016-12-20 发布日期:2016-04-18
  • 通讯作者: 谢军伟,Tel.:029-84789121,E-mail:xjw_xjw_123@163.com E-mail:xjw_xjw_123@163.com
  • 作者简介:张浩为,男,硕士研究生。主要研究方向:相控阵雷达资源管理。Tel.:029-84789121,E-mail:zhw_xhzf@163.com;谢军伟,男,教授,博士生导师。主要研究方向:新体制雷达、抗干扰性能评估。Tel.:029-84789121,E-mail:xjw_xjw_123@163.com

Dynamic priority scheduling algorithm for air defense phased array radar in overload situations

ZHANG Haowei, XIE Junwei, SHI Junpeng, LI Jingqing, SHENG Chuan   

  1. Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China
  • Received:2015-11-25 Online:2016-12-20 Published:2016-04-18

摘要: 针对防空相控阵雷达负载饱和情况下的时间分配问题,提出一种基于目标威胁密度和截止期的雷达任务动态优先级调度算法。根据目标信息建立非线性目标威胁度模型并设计动态优先级表,然后,利用目标威胁度、任务驻留时间和截止期共同确定任务的综合优先级。在此基础上,提出执行威胁率(TRE)的评估指标,以反映调度算法对重要任务的执行情况。仿真结果表明,在饱和时序下,相比于传统的截止期最早最优先算法,改进算法的搜索性能提高了43%,执行威胁率提高了52%。

关键词: 相控阵雷达, 自适应调度, 动态优先级, 饱和时序, 目标威胁度

Abstract: Aimed at time resource allocation in the air defense phased array radar in overload situations, a new scheduling algorithm using the threat density of targets and deadline of tasks to decide the task dynamic priority was proposed. The nonlinear threat level of targets model was established and the dynamic priority table was designed. Then, the synthetic priority was determined by the threat level of targets, task dwell time and the deadline. The notion of threat ratio of execution (TRE) was proposed in the performance evaluation indexes to reflect the radar scheduling performance in important tasks. The simulation results show that compared with the earliest deadline first algorithm, the proposed algorithm could improve search performance by 43% and enhance the threat ratio of execution by 52% in overload situations.

Key words: phased array radars, adaptive scheduling, dynamic priority, overload situations, threat level of targets

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