| Citation: | ZHANG Haowei, XIE Junwei, SHI Junpeng, et al. Dynamic priority scheduling algorithm for air defense phased array radar in overload situations[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(12): 2722-2729. doi: 10.13700/j.bh.1001-5965.2015.0779(in Chinese)
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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.
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